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Federal Motor Vehicle Safety Standards; Bus Rollover Structural Integrity Publication: Federal Register Agency: National Highway Traffic Safety Administration Byline: Ann Carlson Date: 13 November 2023 Subjects: American Government  , Buses, Safety
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[Federal Register Volume 88, Number 217 (Monday, November 13, 2023)]
[Rules and Regulations]
[Pages 77523-77532]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 2023-24381]
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DEPARTMENT OF TRANSPORTATION
National Highway Traffic Safety Administration
49 CFR Part 571
[Docket No. NHTSA-2023-0043]
RIN 2127-AM58
Federal Motor Vehicle Safety Standards; Bus Rollover Structural
Integrity
AGENCY: National Highway Traffic Safety Administration (NHTSA), U.S.
Department of Transportation (DOT).
ACTION: Final rule; partial grant of petitions for reconsideration.
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SUMMARY: This document grants parts of petitions for reconsideration of
a December 29, 2021, final rule that established Federal Motor Vehicle
Safety Standard (FMVSS) No. 227, ``Bus Rollover Structural Integrity.''
The standard is intended to enhance rollover structural integrity and
reduce the likelihood of ejection from over-the-road buses
(motorcoaches), and other buses with a gross vehicle weight rating
(GVWR) greater than 11,793 kilograms (kg) (26,000 pounds (lb)). This
final rule adjusts the definition of ``transit bus'' and revises the
maximum allowable weight of objects intruding into the survival space
during the rollover test. This document denies other requests in the
petitions, including petitions to expand the applicability of the
standard to other bus types and extend the compliance date by 2 years.
DATES:
Effective date: This final rule is effective December 30, 2024.
Compliance date: The compliance date of this final rule is December
30, 2024. Optional early compliance is permitted.
Petitions for reconsideration: If you wish to petition for
reconsideration of this rule, your petition must be received by
December 28, 2023.
ADDRESSES: Correspondence related to this rule, should refer to the
docket number in the heading of this document and be submitted to:
Administrator, National Highway Traffic Safety Administration, 1200 New
Jersey Avenue SE, West Building, Washington, DC 20590. The petition
will be placed in the docket. Anyone is able to search the electronic
form of all documents received into any of our dockets by the name of
the individual submitting the comment (or signing the comment, if
submitted on behalf of an association, business, labor union, etc.).
You may review DOT's complete Privacy Act Statement in the Federal
Register published on April 11, 2000 (65 FR 19477-78) or you may visit
https://www.transportation.gov/individuals/privacy/privacy-act-system-records-notices.
FOR FURTHER INFORMATION CONTACT: For non-legal issues, you may contact
Mr. Dow Shelnutt, NHTSA Office of Crashworthiness Standards (telephone
number is 202-366-8779). For legal issues, you may call Mr. Matthew
Filpi, NHTSA Office of Chief Counsel (telephone 202-366-2992) (fax 202-
366-3820). You may send mail to these officials at the National Highway
Traffic Safety Administration, 1200 New Jersey Avenue SE, Washington,
DC 20590.
SUPPLEMENTARY INFORMATION:
Table of Contents
I. Background
II. Petitions for Reconsideration
a. Applicable Buses
b. Seating Systems and Floor Strength
c. Limitations on Objects Entering Survival Space
d. Defining the Ballasting Process During Testing
e. Lead Time
III. Responses to Petitions
a. Applicability of the Standard
1. Application to Transit Buses
2. Application to Medium-Size Buses and School Buses
3. Application to Tour Buses
b. Requirements of Seating Systems and Floor Strength
c. Limitations on Objects Entering Survival Space
d. Defining the Ballasting Process During Testing
e. Implementation Lead Time
IV. Correction
V. Rulemaking Analyses and Notices
I. Background
On December 29, 2021, NHTSA published a final rule that established
FMVSS No. 227, ``Bus Rollover Structural Integrity,'' (86 FR 74270,
Docket No. NHTSA-2021-0088). The purpose of this safety standard is to
enhance the rollover structural integrity of over-the-road buses
(motorcoaches) regardless of GVWR, and other buses with a GVWR greater
than 11,793 kg (26,000 lb). Issued pursuant to the Moving Ahead for
Progress in the 21st Century Act (MAP-21), this final rule requires
covered buses to provide a ``survival space'' in a rollover test to
protect the occupants from possible collapse of the bus structure
around them. This final rule also prohibits emergency exits from
opening in the rollover test to reduce the likelihood of ejection and
requires no part of the vehicle originally outside the survival space
pretest to enter the survival space during testing.
[[Page 77524]]
The test adopted in FMVSS No. 227 by the December 2021 final rule
is based on the complete vehicle rollover test of United Nations
Economic Commission for Europe Regulation 66 (ECE R.66), ``Uniform
Technical Prescriptions Concerning the Approval for Large Passenger
Vehicles with Regard to the Strength of their Superstructure,'' ECE
R.66.\1\ The test simulates a real-world rollover crash of a large bus.
The test bus is placed on a tilting platform that is 800 mm (24 inches)
above a smooth and level concrete surface. One side of the tilting
platform along the length of the bus is raised at a steady rate of not
more than 5 degrees/second until the vehicle becomes unstable, rolls
off the platform, and impacts the concrete surface below. During this
rollover test, FMVSS No. 227 requires there be no intrusion into the
``survival space'' by any part of the vehicle outside the survival
space, except for minute objects weighing less than 15.0 grams, such as
pebbles of glazing, bolts, or screws, which do not pose an unreasonable
risk to safety for occupants. Additionally, emergency exits must not
open during the movement of the tilting platform or as a result of the
impact of the vehicle on the impact surface.
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\1\ Dated February 2006, https://unece.org/fileadmin/DAM/trans/main/wp29/wp29regs/r066r1e.pdf . ECE R.66 defines ``superstructure''
as ``the load-bearing components of the bodywork as defined by the
manufacturer, containing those coherent parts and elements which
contribute to the strength and energy absorbing capability of the
bodywork, and preserve the residual space in the rollover test.''
``Bodywork'' means ``the complete structure of the vehicle in
running order, including all the structural elements which form the
passenger compartment, driver's compartment, baggage compartment and
spaces for the mechanical units and components.''
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This final rule applies to high-occupancy vehicles, which was
Congress's focus in the Motorcoach Enhanced Safety Act, part of MAP-
21,\2\ due to an unreasonably high involvement in fatal rollovers.
After accounting for Electronic Stability Control and seat belt use in
these bus types, we estimate this rule will save 2-3 lives per year.
The material and fuel costs per vehicle range from approximately $2,200
to $5,400. The cost per equivalent life saved is estimated to range
from $2.48 million (15 percent seat belt usage) to $6.38 million (90
percent seat belt usage).
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\2\ MAP-21 Subtitle G, the ``Motorcoach Enhanced Safety Act of
2012,'' defined ``motorcoach'' as having the meaning given the term
``over-the-road bus'' in section 3038(a)(3) of TEA-21 (49 U.S.C.
5310 note) but did not include a transit bus or a school bus. Under
MAP-21, an over-the-road bus is a bus characterized by an elevated
passenger deck located over a baggage compartment.
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II. Petitions for Reconsideration
The agency received petitions for reconsideration of the December
29, 2021, final rule from five respondents: Van Hool, New Flyer of
America Inc. (NFA), ABC Companies (ABC), School Bus Safety Advocates
(SBSA), and DEVCO Design and Development (DEVCO). The issues raised by
the petitioners are summarized below.
a. Applicable Buses
The final rule applies to over-the-road buses (OTRBs) regardless of
GVWR and buses other than OTRBs (non-OTRBs) with a GVWR greater than
11,793 kg (26,000 lb) with the following exceptions: school buses,
school bus derivative buses, transit buses, prison buses, and perimeter
seating buses. Several commenters petitioned NHTSA to reconsider the
types of buses that are subject to this final rule. SBSA requested that
the rule include all medium-size buses (buses with a GVWR greater than
4,536 kg (10,000 lb) and less than or equal to 11,793 kg (26,000
lb)).\3\ DEVCO also requested that tour buses be included, since it
believes most tour buses are less than 26,000 lb and would therefore be
excluded from the final rule. NFA requested NHTSA to clarify and refine
the definition of transit bus to include physically identical buses
designed, built, and marketed as transit buses, but sold to private
entities or Federal agencies. Van Hool and ABC requested NHTSA to
exclude privately owned non-OTRB that are equivalent in design to
transit buses (with low floor construction and allowance for standing
passengers).
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\3\ SBSA specifically requested NHTSA amend the applicability of
the final rule by changing the minimum GVWR of non-OTRBs from 11,793
kg (26,000 lb) to 4,535 kg (10,000 lb). This change would have the
effect of including all medium-size buses to the applicability of
the final rule.
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b. Seating Systems and Floor Strength
The final rule does not expressly specify requirements related to
floor or seating system strength. SBSA petitioned NHTSA to include
floor strength requirements in FMVSS No. 227 and DEVCO requested
including seating system strength to further control the survival
space.
c. Limitations on Objects Entering Survival Space
The final rule requires that no part of the vehicle which is
originally outside the survival space shall intrude into the survival
space during the movement of the tilting platform or resulting from
impact of the vehicle on the impact surface, except for items separated
from the bus with a mass less than 15.0 grams. Van Hool and ABC
petitioned that this mass limit is too low and should be increased. Van
Hool and ABC also requested permitting laminated glazing to enter into
the survival space, regardless of its mass.
d. Defining the Ballasting Process During Testing
The final rule outlines the ballasting procedure to prepare the bus
for the rollover test in section S6.2.5. Van Hool and ABC petitioned
that this procedure is not well-defined and should include more details
such as where load packages will be placed, how much the load packages
will weigh, where the center of gravity of each load package will be
positioned, and whether any of the load packages will be restrained.
e. Lead Time
The final rule specifies a compliance date of 3 years after
publication of the final rule for FMVSS No. 227 as per MAP-21.\4\ Van
Hool and ABC requested a lead time of 5 years, which, they stated,
would allow the industry to cope with financial hardship and supply
chain delays resulting from the COVID pandemic. Van Hool and ABC also
argued that the additional lead time would allow them to synchronize
with traditional development cycles of new OTRBs to avoid excessive
development peaks as the industry recovers from the pandemic driven
economic downturn in the next few years.
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\4\ Section 32703(e) of MAP-21 directs that any regulation
prescribed in accordance with subsections 32703(a), (b), (c), or (d)
shall apply to all motorcoaches manufactured more than 3 years after
the date on which the regulation is published as a final rule. NHTSA
issued FMVSS No. 227 in accordance with Sec. 32703(b)(1) and (2).
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III. Responses to Petitions
a. Applicability of the Standard
1. Application to Transit Buses
Three respondents petitioned NHTSA to adjust the applicability of
the final rule, specifically regarding the definition of transit buses.
Van Hool, ABC, and NFA pointed out that under the current definition,
buses that are manufactured as transit buses but sold to entities that
are not State or local governments (or operated on behalf of State or
local governments) are not considered transit buses. In this document,
``transit-type buses'' means buses that have features of transit buses
but that are sold to entities that are not State or local governments
(or operated on behalf of State or local governments). Some examples
provided by NFA of transit-type buses that would not be excluded from
the final rule are
[[Page 77525]]
National Park Service buses, private campus buses,\5\ and buses sold to
the General Services Administration for use on military bases. NFA
stated these bus types do not fit the definition for transit bus
because they are not used ``for public transportation provided by, or
on behalf of, a State or local government . . . .'' Van Hool added that
``(d)ue to the low floor construction of these non-OTRBs and the fact
that many passengers are standing inside the vehicle . . . we see a lot
of complications in order to have FMVSS No. 227 fulfilled.'' NFA
petitioned NHTSA to adjust the definition of transit bus to include
buses purchased by these entities. Further, NFA noted these buses are
often the same bus models purchased by State and local government
agencies for public transportation, and are being used for similar
fixed route, low speed service. NFA stated their ``low speed, and
frequent stop duty cycle'' usage means they should be held to the same
rollover standards as transit buses purchased by State and local
government agencies for public transportation.
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\5\ The petitioner also lists airport rental car shuttles. NHTSA
notes that buses with 7 or fewer designated seating positions
rearward of the driver's seating position that are forward-facing or
can convert to forward-facing without the use of tools are excluded
from the standard (S3(b)(2), FMVSS No. 227). These buses can include
airport rental car shuttles.
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NFA noted that NHTSA calculated compliance costs in the August 6,
2014, notice of proposed rulemaking (NPRM) (79 FR 46090) and final rule
under the assumption that some bus manufacturers are already building
their buses to conform to ECE R.66, which results in reduced costs to
comply with FMVSS No. 227 due to their similar testing methods. NFA
stated there is no reason to believe any transit bus manufacturer would
be manufacturing transit-type buses to comply with ECE R.66. Since they
would need to develop a new design, the petitioners stated this would
result in a significant cost increase for the manufacturers of transit
buses to comply with FMVSS No. 227, compared to the calculations in the
Final Regulatory Evaluation (FRE) and final rule.\6\
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\6\ NFA submitted a subsequent memorandum (dated March 16, 2023)
after calculating estimated engineering compliance costs. NFA states
this information was not available to them at the time their
original petition was filed in February 2022. In brief, NFA
forecasted that the non-recurring engineering costs for non-exempt
transit buses would be so large that they would stop offering such
transit buses to private entities and to the federal government.
NHTSA has placed a copy of the memorandum in the docket for the
December 29, 2021 final rule (Docket No. NHTSA-2021-0088). This
topic is discussed later in this section.
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Agency Response: Based on the reasons outlined in the paragraphs
below, the agency agrees in part with the requests of NFA, Van Hool,
and ABC. Transit buses operated by or on behalf of Federal agencies
such as the U.S National Park Service (NPS) and the General Services
Administration (GSA) are likely to be operated in similar low risk
driving patterns when compared to transit buses operated by or on
behalf of State or local governments. The agency does not have enough
data to conclude whether privately owned or operated transit-type buses
operate under these same low risk driving patterns. Therefore, NHTSA
will amend the transit bus definition to additionally include only
buses that are operated by or on behalf of the Federal government. Any
transit-type bus that is sold to operators not affiliated with a
Federal, State, or local government will still need to comply with
FMVSS No. 227.
NHTSA's proposal to apply FMVSS No. 227 to high-occupancy vehicles
was based on NHTSA's and Congress's concern about the involvement of
high-occupancy vehicles in fatal rollover crashes. Furthermore, NHTSA
generally intended the final rule to cover the same buses covered in
the agency's November 25, 2013, final rule that required lap/shoulder
seat belts for each passenger seating position in over-the-road buses
(FMVSS No. 208, ``Occupant crash protection,'' 78 FR 70416). The
agency's general view in the FMVSS No. 227 final rule was that FMVSS
No. 227 should apply to those buses with seat belts, so that a survival
space could be provided to belted occupants. Transit buses were
excluded from FMVSS No. 227 for the same reason they were excluded from
the belt requirement. Based on the agency's analysis of the Fatality
Analysis Reporting System (FARS) data, the bus type with the lowest
percentage of fatalities for all buses with a GVWR greater than 26,000
lb was the transit bus.\7\
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\7\ 78 FR 70437.
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As stated in the final rule, FMVSS No. 227 will ensure that belted
passengers will be significantly protected against unreasonable risk of
injury in frontal crashes and significantly protected against the risk
of ejection in rollovers. Hand-in-hand with the seat belt rule, FMVSS
No. 227 enhances the safety of these belted passengers by providing a
``survival space'' in a rollover, a space where the belted occupants
are protected from intruding structures such as a collapsing roof or a
detached luggage rack. The benefits of FMVSS No. 227 are maximized when
implemented in the same buses that are equipped with seat belts. The
seat belt requirements in FMVSS No. 208 for large buses provided a
means for belted bus occupants to remain within the survival space in a
crash. Transit buses are not required to be equipped with seat belts in
the absence of a safety need for the belts, and they are likewise not
required to comply with the structural integrity requirements of FMVSS
No. 227 in the absence of a safety need warranting coverage by the
standard.
The definition of ``transit bus'' in the FMVSS No. 227 final rule
is ``a bus that is equipped with a stop-request system sold for public
transportation provided by, or on behalf of, a State or local
government and that is not an over-the-road bus.'' This definition is
also used in both FMVSS Nos. 208, ``Occupant crash protection,'' and
FMVSS No. 136, ``Electronic stability control systems for heavy
vehicles.''
NHTSA is denying the petition based on available use information
and crash data. The exclusion of transit buses from FMVSS No. 227 is
based on the safety record of buses used as transit buses. NHTSA
acknowledges that there are private entities operating the same style
buses that are used by public transit agencies, but ``transit buses''
are excluded because of data reflecting the lower risk of involvement
in rollovers given, among other matters, the fixed-route nature of
their use and how their travel is characterized by frequent bus stops.
Based on the information the agency has received from manufacturers,\8\
private entities make up approximately 10 percent of large transit-type
bus sales, meaning the vast majority of transit-type buses on American
roads are operated by or on behalf of State or local governments. The
data the agency possesses indicate that the number of fatalities
resulting from transit-type bus rollover crashes is lower than the
number of fatalities from OTRBs. After analyzing these data and
researching a number of State and local transit bus routes, the agency
concluded in the final rule that public transit agencies typically
operate transit buses in urban areas at low speeds over fixed routes
with frequent stops, which likely explains why fatalities are lower
relative to other large bus types as observed over the past 20 years.
Additionally, the fact that State and local governments operate a vast
majority of transit-type buses further explains why the risk of fatal
rollover crashes is generally low for transit-type buses, as an
overwhelming majority of transit-type buses are
[[Page 77526]]
operated on low speed, fixed route, frequent stop service by trained
drivers familiar with the routes.
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\8\ New Flyer Response to NHTSA Questions.pdf, NHTSA has placed
a copy of the document in the docket for this final rule.
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On the other hand, privately owned or operated bus services may use
transit-type buses for higher risk driving practices that deviate from
the typical low speed, fixed route, frequent stop service. When
analyzing use by State and local governments, the agency accessed and
analyzed route descriptions on local and State transit authorities'
websites. The agency simply does not have access to that kind of
information for buses used by private entities. Without sufficient data
about typical operating practices of private operators, NHTSA cannot
confirm whether the risk of a fatal rollover crash is as low as it is
for the operating environment of public transportation provided by or
on behalf of State or local governments. Excluding all transit-type
vehicles from compliance with FMVSS No. 227 would not be in the best
interest of safety since these private operators may use the buses for
higher risk driving than the typical public transportation service
provided by or on behalf of State or local governments.
Based on sound inferences made from the data, the agency can say
with confidence that the rollover fatality risk is low when a transit-
type bus is being operated by or on behalf of a State or local
government. Without sufficient, specific use-based data, the agency
cannot say the same about transit-type buses operated by private
entities. If sufficient data were provided to the agency showing
private transit-type bus operators use the buses in the same low-risk
manner, the agency would take it under consideration for future updates
to FMVSS No. 227.
Conversely, there are data about transit-type bus use in National
Parks that support NHTSA's partial granting of the request to consider
buses sold to the Federal government as transit buses. NPS offers
public transportation in the form of shuttle buses at many National
Parks. These buses are often used to transport passengers throughout
the parks and to neighboring park-and-ride locations or visitor
centers.9 10 11 12 13 These applications are typically on
fixed routes at low speeds. Buses operated by the NPS are not likely to
be used for any purposes other than their intended shuttle routes.
Further, NHTSA would consider transportation provided to patrons of a
National Park to be public transportation as National Parks are open to
the general public. However, buses operated by NPS, which is a Federal
agency, or its contractors, are not operated ``by, or on behalf of, a
State or local government.'' These buses are often operated by
contractors on behalf of the NPS, so an amendment to include
``Federal'' in the transit bus definition is warranted to include these
NPS buses as transit buses.
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\9\ ``Yosemite--Public Transportation.'' National Parks Service,
U.S. Department of the Interior, https://www.nps.gov/yose/planyourvisit/publictransportation.htm, Last accessed January 12,
2023.
\10\ ``Grand Canyon--South Rim Shuttle Bus Routes: Winter 2022-
23.'' National Parks Service, U.S. Department of the Interior,
https://www.nps.gov/grca/planyourvisit/shuttle-buses.htm, Last
accessed January 12, 2023.
\11\ ``Zion--Zion Canyon Shuttle System.'' National Parks
Service, U.S. Department of the Interior, https://www.nps.gov/zion/planyourvisit/zion-canyon-shuttle-system.htm, Last accessed January
12, 2023.
\12\ ``Rocky Mountain--Shuttle Buses and Public Transit.''
National Parks Service, U.S. Department of the Interior, https://www.nps.gov/romo/planyourvisit/shuttle-buses-and-public-transit.htm,
Last accessed January 12, 2023.
\13\ ``Acadia--Island Explorer.'' National Parks Service, U.S.
Department of the Interior, https://www.nps.gov/acad/planyourvisit/island-explorer.htm, Last accessed January 12, 2023.
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As mentioned by petitioner NFA, GSA purchases buses for various
uses, including transit-type buses for use on military bases. The GSA's
Ground Transportation Services provide time-definite pickup and
delivery of government personnel in a variety of applications.\14\
According to NFA, they expect to sell transit-type buses to the GSA
``for lease to various federal agencies, as on military bases or
national parks.'' The most likely use for a transit-type bus on a
military base would be operating a bus on fixed routes at low speeds
with frequent stops, which is similar to the use by public
transportation agencies in other urban areas. The agency acknowledges
that it is possible that the military may use transit-type buses for
purposes other than the fixed route style service listed above, but the
agency did not uncover any data indicating higher rates of rollover
crashes for military operated transit-type buses. Additionally, NHTSA
explicitly states that no standard applies to a vehicle manufactured
for, and sold directly to, the Armed forces of the United States in
conformity with contractual specification.\15\ Because the regulations
are clear when it comes to regulating vehicles produced for use by the
military, the agency believes including Federal government in the
transit bus definition is consistent with NHTSA's regulations and the
Safety Act.
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\14\ ``Ground Transportation Services.'' U.S. General Services
Administration, GSA, https://www.gsa.gov/buy-through-us/products-services/transportation-logistics-services/transportation/transportation-and-logistics-services-schedule/ground-transportation-services, Last accessed January 12, 2023.
\15\ 49 CFR 571.7(c)
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In their petition for reconsideration, NFA challenged NHTSA's cost
estimates in the FRE based on the number of ``non-exempt transit
buses.'' Specifically, NFA stated that NHTSA underestimated the costs
to comply with FMVSS No. 227 because the FRE did not include costs
incurred by transit bus manufacturers to update their ``non-exempt
transit buses'' to meet the structural integrity requirements.\16\
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\16\ Based on the information provided by OTRB manufacturers,
the FRE estimated approximately 30 percent of the large bus market
consists of buses with superstructures that currently comply with
ECE R.66.
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NHTSA developed the cost estimations in the FRE to determine the
costs that would result from updating the applicable buses to comply
with the requirements of FMVSS No. 227. Since transit buses are
excluded from compliance with FMVSS No. 227, they were not included in
the cost estimations. NHTSA did not include cost estimations in the FRE
for updating bus types other than the bus types that are required to
comply with FMVSS No. 227. As discussed in the FRE, NHTSA estimated a
market size of 2,200 buses sold annually that are applicable to FMVSS
No. 227. These buses include all OTRBs and other large buses operated
by both public and private entities. NFA estimated there are
approximately 80 to 120 ``non-exempt transit buses'' per year that are
sold to private entities or the Federal Government that would not fit
the definition of transit buses. After revising the transit bus
definition to include buses operated by or on behalf of the Federal
Government, there are even fewer ``non-exempt transit buses,''
representing less than 3 to 5 percent of the estimated 2,200 applicable
buses sold annually. Therefore, the cost estimations in the FRE do not
need to be adjusted to account for transit buses as requested by NFA.
NFA stated in their March 16, 2023, memo, they estimate it would be
cost-prohibitive for them to manufacture transit buses that comply with
FMVSS No. 227 due in part to the small market size of ``non-exempt
transit buses.'' Further, NFA stated that if their petition is not
granted, they will not sell transit buses to private parties due to
high engineering and tooling costs, and ``[t]here is no reason to
believe that other manufacturers will reach a different conclusion.''
In response, if bus manufacturers decide not to reconfigure transit
buses to comply with FMVSS No. 227, the buses would be noncomplying and
could not be sold to
[[Page 77527]]
private bus operators as currently configured. The buses do not provide
the requisite level of safety that is needed to protect occupants of
high occupancy vehicles from unreasonable risks of injury and fatality
in crashes. When the buses are subject to non-transit use, the standard
ensures the occupants are protected from risks associated with such
use. However, there are alternative bus options for private entities
seeking to purchase a high occupancy bus, such as a school bus
derivative bus,\17\ an over-the-road bus, or a bus type with a GVWR
less than or equal to 26,000 lb. Additionally, it is possible that a
transit-style bus manufacturer may decide to produce a new complying
bus in the future, as meeting the standard is practicable. Given the
safety need for FMVSS No. 227, NHTSA believes it is consistent with the
Safety Act and the public interest for the agency not to establish a
carve-out that could potentially exclude every non-OTRB as a ``transit
bus,'' regardless of the party to whom the bus is sold. Therefore,
NHTSA will not further adjust the definition of transit bus to include
private operators.
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\17\ A school bus derivative bus means a bus that meets the
Federal Motor Vehicle Safety Standards for school bus emergency
exits, rollover protection, bus body joint strength, and fuel system
integrity. (S4, FMVSS No. 227).
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2. Application to Medium-Size Buses and School Buses
SBSA requested NHTSA to increase the scope of applicability of the
final rule to include all buses with a GVWR greater than 4,536 kg
(10,000 lb). This increase in scope would result in the inclusion of
all buses with a GVWR greater than 4,536 kg (10,000 lb), without any
exclusion for school buses, transit buses, and prison buses. The
agency's response to including transit buses is discussed above. SBSA's
request was specifically to adjust the discussion in the summary of the
final rule, without mentioning any of the details to be altered in the
remainder of the preamble or the regulatory text. SBSA did not provide
any data to support their request.
Agency Response: NHTSA's proposal to apply FMVSS No. 227 to high-
occupancy vehicles was based on NHTSA's and Congress's concern about
the involvement of high-occupancy vehicles in fatal rollover crashes.
Furthermore, NHTSA intended the final rule to cover the same buses
covered in the agency's November 25, 2013, final rule, which required
lap/shoulder seat belts for each passenger seating position in over-
the-road buses. The agency's view in the NPRM and final rule was that
FMVSS No. 227 should apply to those buses with seat belts, so that a
survival space could be provided to belted occupants.
In the final rule, NHTSA stated FMVSS No. 227 shall not be
applicable to medium-size non-OTRB buses. NHTSA based the decision on
an analysis of crash data for medium-size buses. Examining FARS data
from 2006-2019, there were 136 occupant fatalities in non-OTRBs with a
GVWR between 4,536-11,793 kg (10,000-26,000 lb), of which 50 fatalities
were a result of 24 rollover crashes. Over the 14-year period between
2006-2019, medium-size buses were associated with an average of 1.7
rollover crashes per year and 3.6 fatalities due to rollover crashes
per year. These numbers are small when compared to large buses.
Comparing to large buses and OTRBs, data from FARS 2006-2019 shows
there was an annual average of 3.7 fatal rollover crashes involving
large buses (GVWR greater than 11,793 kg (26,000 lb)) (including
OTRBs), resulting in an average of 11.9 occupant fatalities per year.
Additionally, there are an estimated 2,200 large buses (including
OTRBs) produced annually, compared to an estimated 16,000 medium-size
buses produced annually.\18\ Table 1 below summarizes these data.
---------------------------------------------------------------------------
\18\ Medium-Size Bus Roadway Departure, Return, and Rollover
Bryce Canyon City, Utah September 20, 2019. Accident Report NTSB/
HAR-21/01 PB2021-100917. Last accessed October 26, 2022.
---------------------------------------------------------------------------
SBSA did not provide any data or information with their petition
requesting that new medium-size buses meet the rollover structural
requirements of FMVSS No. 227. Therefore, the agency reiterates the
conclusion stated in the final rule that the data do not support a
finding of a safety need to warrant application of FMVSS No. 227 to
medium-size buses.\19\ For the reasons above and in the final rule,
NHTSA denies the petition to extend FMVSS No. 227 to medium-size buses.
---------------------------------------------------------------------------
\19\ 86 FR 74282-74284.
Table 1--Summary Statistics for Fatal Rollover Crashes and Occupant Fatalities for Large Buses (Including OTRBs)
and Medium-Size Buses
[FARS 2006-2019]
----------------------------------------------------------------------------------------------------------------
Average annual
Bus size Average annual rollover Average annual
rollover crashes fatalities fleet sales
----------------------------------------------------------------------------------------------------------------
Large Bus (greater than 26,000 lb GVWR) and all OTRBs.. 3.7 11.9 2,200
Medium-Size Bus (GVWR of 10,000-26,000 lb)............. 1.7 3.6 16,000
----------------------------------------------------------------------------------------------------------------
Although not specifically stated in their petition, SBSA implied
that school buses also be included in the scope of FMVSS No. 227.
School buses are already required to meet roof strength requirements
stated in FMVSS No. 220, ``School bus rollover protection'' (49 CFR
571.220 \20\). NHTSA stated in the final rule for FMVSS No. 227 that
since school bus derivative buses already meet the roof crush
resistance requirements in FMVSS No. 220, it would be redundant to
require those buses to also meet FMVSS No. 227.\21\
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\20\ https://www.ecfr.gov/current/title-49/subtitle-B/chapter-V/part-571/subpart-B/section-571.220, Last accessed January 17, 2023.
\21\ 86 FR 74286-74287.
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3. Application to Tour Buses
DEVCO stated that only including buses with a GVWR greater than
26,000 lb excludes most tour buses from this rule. DEVCO requested
NHTSA include these bus types in the applicability of FMVSS No. 227,
but did not provide any data to support its request.
Agency Response: FMVSS No. 227 is applicable to all over-the-road
buses, regardless of GVWR, as well as all large buses with a GVWR
greater than 11,793 kg (26,000 lb), except school buses, school bus
derivative buses, transit buses, and prison buses. Also excluded from
FMVSS No. 227 are buses with 7 or fewer designated seating positions
rearward of the driver's seating position that are forward-facing or
can convert to forward-facing without the use of tools. The FARS
database does not define or use the term ``tour bus'' in reference to
[[Page 77528]]
a bus body type.\22\ However, the FARS database does include a bus use
category for ``Charter/Tour.'' The term ``tour bus'' is not explicitly
defined and could be described as different types of buses in different
contexts. An internet search for ``tour buses'' includes results of
traditional motorcoaches, double decker buses, and open-top buses for
sight-seeing tours. Traditional motorcoaches would be included within
the scope of FMVSS No. 227 due to their categorization as an OTRB.
Double decker buses are generally much heavier than standard buses.
Listed GVWRs for Volvo,\23\ Wright Bus,\24\ and Guleryuz \25\ double
decker buses range from 18,100 kg to 26,300 kg (40,000 lb to 58,000
lb). Therefore, these would be included within the scope of FMVSS No.
227 due to their GVWR being greater than 11,793 kg (26,000 lb). As
stated in the final rule, ``(t)he standard would not apply to a level
of a bus that does not have a permanent roof over the level, such as
the upper level of a double-decker bus that does not have a permanent
roof over the upper level.'' However, any portion of an open-top bus
that does have a permanent roof, for example, the lower level of a
double-decker open-top bus, is subject to the requirements of FMVSS No.
227.
---------------------------------------------------------------------------
\22\ FARS body types related to buses include ``large van'',
``school bus'', ``cross country/intercity bus'', ``transit bus (city
bus)'', ``van-based bus'', ``other bus'', and ``unknown bus''.
\23\ ``Specifications.'' 9700 Double Decker Specifications
[verbar] Volvo Buses, AB Volvo, https://www.volvobuses.com/en/coaches/coaches/volvo-9700-dd/specifications.html, last accessed May
13, 2022.
\24\ ``Meet the UK's Favourite Bus.'' StreetDeck Ultroliner EU6
[verbar] Wrightbus, https://wrightbus.com/en-gb/diesel-bus-streetdeck-ultrolinerEU6, last accessed May 13, 2022.
\25\ ``Dynabus Top Open Double Decker Low Floor.'' Guleryuz
Technical Specification of Top Open Double Decker Bus, https://www.dynabus.gr/wp-content/uploads/2010/02/460069777.pdf, last
accessed May 13, 2022.
---------------------------------------------------------------------------
The other type of bus that could be described as a tour bus is a
van-based bus or body-on-frame bus that is less than 26,000 lb. These
bus types are not included in the scope of this final rule because they
are neither OTRBs nor with a GVWR greater than 11,793 kg (26,000 lb).
Due to the reasons discussed above, there is not a safety need to
extend applicability to medium-size buses. Therefore, NHTSA does not
find any need to adjust any criteria of applicability for bus types
based on DEVCO's suggestions.
b. Requirements for Floor Strength and Seating Systems
SBSA requested that FMVSS No. 227 include requirements for
increased floor strength to improve safety. They stated that ``[s]ince
roof and wall strength is also applicable to floor strength for
controlling the survival space, improved floor strength should be
added.'' SBSA did not provide any minimum strength requirements,
suggested procedures, or data to justify their request. DEVCO requested
that NHTSA modernize the seating systems in buses in order to control
survival space not only during rollovers, but also in other types of
bus crashes. To specify the recommended updates, DEVCO suggested
adjustments to FMVSS No. 207, ``Seating Systems,'' to increase the
scope of applicability to include all buses and seating orientations.
Agency Response: NHTSA is denying these requests. The agency agrees
that both floor strength and seating system strength are an integral
part of protecting occupants within a bus. However, the rulemaking did
not include specific floor strength requirements in FMVSS No. 227, so
SBSA's suggestion to add specific floor strength requirements appears
beyond the scope of the issues appropriate for a petition for
reconsideration. In any event, NHTSA believes there is no need for
specific floor strength requirements as the current standard accounts
for floor strength. Under the requirements of FMVSS No. 227 the entire
bus shell must have sufficient strength to keep the sidewall and roof
from intruding into the survival space during the rollover test.
Specifically, this means the lower corners where the sidewall connects
to the floor, the upper corners where the sidewall meets the roof, the
floor, and the roof itself will contribute to the survival space of the
bus during vehicle rollovers. Thus, as a practical matter, the test of
FMVSS No. 227 addresses floor strength, and bus designers will have to
ensure the floor is sufficiently strong to work with the strengthened
bus roofs and side wall panels to provide the survival space required
by the standard.
Regarding the request to strengthen seating systems, as stated in
the final rule notice promulgating FMVSS No. 227, ``NHTSA has decided
that the primary purpose of this rulemaking is to establish a roof
strength and crush resistance standard that improves the resistance of
roofs to deformation and intrusion, i.e., by providing a survival space
to occupants in rollovers.'' \26\ With that determination, the agency
decided not to adopt proposed requirements that each anchorage of the
seats not completely separate from its mounting structure in the test.
DEVCO did not provide any data in its petition to argue against this
determination. With regard to seatbacks, DEVCO's request to modify
seating systems by requiring strengthened seatbacks for all buses and
seat belts for school buses is not within the scope of the rulemaking.
For these reasons, NHTSA is denying the request to adjust the final
rule to further account for floor strength and seating systems based on
SBSA's and DEVCO's comments.
---------------------------------------------------------------------------
\26\ 86 FR 74272.
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c. Limitations on Objects Entering Survival Space
Van Hool and ABC requested that NHTSA revisit the mass of an object
that is allowed to enter the survival space during the rollover test.
Van Hool commented that the fact that something as small as a plastic
cap weighing 20 grams would cause a rollover test to fail is out of
balance with the consequences of the failure. Additionally, Van Hool
and ABC expressed that the 15-gram criterion is too severe and
unbalanced with real life situations, due to the fact that small items
weighing 15 grams or more ``will cause no or minimal bodily harm to
occupants.'' Van Hool also stated that ``(d)ue to the deformation of
the upper body (of the vehicle) at impact, the glazing at the front and
end of the vehicle cracks diagonally due to shear forces, often
ejecting greater parts of glass than allowed by the 15-gram
criterium.'' Therefore, they requested NHTSA exclude laminated glass
from the 15-gram criterion, increase the maximum allowed weight up to a
``more realistic level,'' and consider a separate test methodology to
determine whether intrusion into the survival space causes a failure.
Agency Response: The ECE R.66 rollover test, the standard on which
this final rule is based, specifies that no part of the vehicle that is
outside the survival space at the start of the test shall enter the
survival space during the test. There is no specification for minimum
size, which implies any object entering the survival space, regardless
of mass, would cause a bus to fail the minimum survival zone
requirements of the test. NHTSA believes such would not be a practical
requirement, since it is likely for the bus to have small broken pieces
of glazing, nuts, bolts, screws, etc., entering the survival space
during a bus rollover. Further, none of the aforementioned objects
would be likely to cause serious injury to passengers during a rollover
unless they were sufficiently heavy. Therefore, in the final rule,
NHTSA adopted a test procedure that permitted objects to enter the
survival space if each object weighs an amount that is not likely to
cause injury to passengers.
[[Page 77529]]
The 15-gram criterion stemmed from the maximum allowable mass of
glazing to be separated from the laminate during the 227 g (0.5 lb),
9.14 m (30 feet) ball drop impact test as defined in ANSI Z26.1-
1996.\27\ Referring to ANSI Z26.1 provided a method to quantify the
weight of small pieces of glazing material that could be expected to
separate after an impact. However, as Van Hool mentions in its
petition, there are objects other than small fasteners and pieces of
glazing that may enter the survival space which ought not result in the
failure of the rollover test. These objects may have a greater mass
than the 15.0 grams calculated based on shards of glass, but still
would not present a risk of injury to the occupants.
---------------------------------------------------------------------------
\27\ ANSI/SAE Z26.1 is incorporated by reference into FMVSS No.
205, ``Glazing materials.'' ANSI/SAE Z26.1-1996 permits pieces of
laminated glazing of 1935 mm\2\ (3 in\2\) to separate (break off) in
the 227 g (0.5 lb) 9.14 m ball drop impact test. We estimate that
laminated glazing has a glass thickness of approximately 2.5 mm for
each glass layer, and a glass density of about 0.00251 g/mm\3\
(1.445 ounce (oz)/in\3\). Thus, a piece of laminated glazing of 1935
mm\2\ (3 in\2\) has a mass of approximately 12 grams (g) (0.43 oz).
Factoring in a 3 g (0.11 oz) tolerance, this is the origin of the
15.0 gram (0.53 oz) mass limit that is prohibited to intrude into
the survival space as stated in the final rule.
---------------------------------------------------------------------------
The purpose of the requirement is to not allow items large enough
to injure occupants, such as glazing panels, handrails, or luggage
racks, or a sufficiently heavy portion of these items, to enter the
survival space.\28\ NHTSA has estimated the approximate mass of
fasteners and plastic trim pieces, such as end caps, that are likely to
be used in areas of a motorcoach subjected to the impact force during
the rollover test. Most plastic end caps are constructed of low-density
polyethylene (LDPE) and are offered in a wide range of sizes and
styles. Based on the common offerings of online end cap manufacturers
and the sizes and styles of handrails, luggage racks, or seat frames
likely to require use of plastic end caps, NHTSA has determined that
the largest end caps are generally 30 grams or less. Most non-
structural bolts and screws used on the interior of a bus would be
small and would have to shear off in order to enter the survival space.
NHTSA estimates a large, unbroken bolt likely to be used in a bus
interior to be no more than 45 grams.\29\
---------------------------------------------------------------------------
\28\ 86 FR 74290. Another purpose to the requirement that
prevents bus components from intruding into the survival space is to
better ensure the glazing is retained as an ejection mitigation
countermeasure. ``FMVSS No. 227's survival space requirement would
improve the structural integrity around window frames and prevent
glazing from popping out or otherwise detaching from its window
mount in a rollover.'' Id. at 74292.
\29\ A hex head fully threaded M10 x 60mm bolt weighs 53.59
grams, including the nut, which weighs approximately 10 grams.
https://itafasteners.com/weight-chart.php Last accessed March 6,
2023.
---------------------------------------------------------------------------
In contrast, a hard object greater than this mass has the potential
to harm bus occupants if it impacts them at sufficient velocity, which
is foreseeable in a bus rollover event. Further, metal fittings or
brackets are typically used to anchor sizable components such as
handrails or stanchions to the bus structure. These fittings, depending
on geometry and manufacturer, can have a mass from approximately 55
grams \30\ to over 200 grams. If a heavier bracket or fitting such as
this breaks off the bus structure, not only can it injure an occupant,
but its failure significantly increases the risk of the more massive
component, which the bracket or fitting secured, intruding into the
survival space. Factoring in a 5-gram tolerance due to the variability
in weights and the use of different brackets and fittings by bus
manufacturers, NHTSA is amending the test procedure adopted in the
final rule, and the amended test procedure will permit individual
objects with a mass less than 60 grams (0.13 lb) to enter the survival
space.
---------------------------------------------------------------------------
\30\ The lightest such bracket readily available has a product
weight of 0.12 lb (55 grams). https://www.austinhardware.com/fitting-fixed-base-no-insert.html. Last accessed March 9, 2023.
---------------------------------------------------------------------------
One of the purposes of this rule is to prevent injurious objects
from entering the survival space. Objects less than 60 grams (e.g.,
fasteners, small glazing pieces, broken pieces of plastic trim, plastic
caps) that separate from the bus are not likely to cause injury to the
bus occupants. Objects with a mass greater than or equal to 60 grams
(e.g., handrail securement brackets, metal fittings, large sections of
glazing panels) that break away from the bus are much more likely to
result in occupant injury, either by striking an occupant or by failing
to keep the more massive component from entering the survival space.
Thus, for the reasons stated above, NHTSA will adjust the regulatory
text of the final rule to increase the mass limit from 15 grams to 60
grams.
We disagree with the request to exempt large pieces of laminated
glazing from the small object weight limit for items entering the
survival space. First, as explained above, the large pieces of
laminated glazing are massive and would likely injure an occupant when
they fell into the survival space. Second, a purpose of FMVSS No. 227
is to ensure that buses maintain their structural integrity in a
rollover to better retain ejection mitigation glazing in a
rollover.\31\ Under Van Hool and ABC's petition, a manufacturer
choosing to use laminated glazing for side or roof windows would not be
required to keep those large heavy panes of glazing from entering the
survival space or from popping out. Accordingly, NHTSA is denying this
request.
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\31\ 86 FR 74271, col. 3.
---------------------------------------------------------------------------
d. Defining the Ballasting Process During Testing
Van Hool and ABC state ``(t)he final rule has no unambiguous
definition of the installation of additional loads inside a vehicle to
bring the vehicle weight up to its GVWR . . . .'' They request details
for the ballasting during the rollover test procedure such as specific
locations where load packages will be placed, how much the load
packages will weigh, where the center of gravity of each load package
will be positioned, and whether any of the load packages will be
restrained. They requested that NHTSA add a more precise procedure for
the loading of the bus up to its GVWR prior to performing the rollover
test. Van Hool also requested load package weight be reduced to 20
percent of its original mass to compensate for the fixation of load
packages.
Agency Response: Section S6.2 of the regulatory text contains the
preparations and procedures for the bus prior to NHTSA performing the
rollover test. Section S6.2.5 describes the ballasting procedure,
including where the load packages are placed in the bus, how much each
load package weighs, and how they are restrained to the seats and bus
frame. This section answers each of the questions Van Hool and ABC
presented about the ballasting procedure, except the precise location
of the center of gravity for each load package. Under the current
procedure's terminology, the physical sizes of the load packages are
not defined. For example, the load packages could be steel plates
placed horizontally in the seat, resulting in a lower center of
gravity, or they could be weighted anthropomorphic ballasts
(commercially available ``water dummies''), resulting in a higher
center of gravity. NHTSA indicated in both the final rule and NPRM that
the method of ballasting or type of ballast used are not of importance,
as those factors will not markedly alter the forces imposed on the
vehicle structure or the seat anchorages during compliance testing, so
long as the ballast is 68 kg (150 lb) at each designated seating
position (DSP). Additionally, in other Federal motor vehicle safety
standards, such as FMVSS No. 214 ``Side impact protection,'' NHTSA does
not specify the type of ballast that must be used in the applicable
test. Therefore, NHTSA is
[[Page 77530]]
remaining consistent with other standards and testing procedures by not
specifying the type of ballast that must be used in the compliance
test, as the type of ballast used does not affect test outcome.
Van Hool and ABC expressed specific concerns that if the ballasts
are not restrained to the bus structure during testing, the tests would
be non-reproducible due to many uncertainties.\32\ As described in the
final rule regulatory text and preamble,\33\ all ballasts must be
securely attached to the seat frames in order to replicate the forces
imparted to the seat anchorages during a crash. The ballasts should be
restrained to the seat frames regardless of the type of ballast used,
so long as the ballast weight, including any attachment mechanisms, is
68 kg (150 lb) at each DSP.
---------------------------------------------------------------------------
\32\ The uncertainties that Van Hool listed in their petition
include coefficient of friction between load packages and vehicle
construction, coefficient of friction between load packages, load
package storage conditions, stability of stacked load packages,
impact uncertainties of load packages during the test, and size/
form/hardness of the load packages.
\33\ 86 FR 74293.
---------------------------------------------------------------------------
Regarding Van Hool's request to reduce the ballast weight to 20
percent of its original mass, NHTSA is denying this request. NHTSA
responded to similar requests in the final rule (86 FR 74293-74294).
NHTSA explained that, as discussed in the NPRM (79 FR 46106), an
Australian study that utilized bus section testing and computer
simulations estimated that 93 percent of a lap/shoulder belt-restrained
occupant mass, 75 percent of a lap belt-restrained occupant mass, and
18 percent of an unrestrained occupant mass are effectively coupled to
the vehicle structure during a rollover. Further, a European Commission
sponsored study in 2003 found that the percentage of occupant mass
coupled to the vehicle structure during a rollover is 90 percent for
lap/shoulder belted occupants and 70 percent for lap belted occupants.
Available studies now uniformly agree that more than 90 percent of the
occupant mass is coupled with the bus during a rollover crash.
Therefore, we do not find any need to adjust the final rule or
ballasting procedure based on Van Hool's petitions for reconsideration.
e. Implementation Lead Time
NHTSA adopted a compliance date of 3 years after publication of the
final rule for FMVSS No. 227. Van Hool and ABC requested a lead time up
to 5 years to adjust their developmental processes to account for a
more stringent set of requirements than the ECE R.66 rollover
requirements, align design improvement times with existing
developmental cycles for their buses, and avoid unnecessary development
peaks. Van Hool and ABC believed that a longer lead time was needed due
to financial hardship, supply chain delays, and increase in material
cost during the pandemic.
Agency Response: NHTSA is denying this request. The 2021 final rule
adopted the 3-year compliance date as required by MAP-21. MAP-21 (in
section 32703(e)) directs that the rulemaking shall apply to all
motorcoaches manufactured more than 3 years after the date on which the
regulation is published as a final rule. NHTSA evaluated and proposed a
3-year compliance date in the October 2014 NPRM and adopted it in the
December 2021 final rule. To enable manufacturers to certify to the new
requirements as early as possible, optional early compliance with the
standard is permitted.
NHTSA believes that manufacturers whose buses do not already meet
ECE R.66 will need to make structural design changes to their large bus
models either by changing the strength of the sidewall and glazing
frame material or the material's physical properties or dimensions
(i.e., thickness or width). Per the results of our test program
conducted in support of this rulemaking, newer buses may need stronger
side pillars to meet the glazing retention requirements, and redesigned
latch mechanisms on roof exits and side window exits to ensure that
they do not release during the impact. However, Van Hool already
manufactures buses for the European market, therefore Van Hool should
already have a good foundation for the ECE R.66 requirements. Research
and development time should be less for manufacturers who already have
a solution developed for the ECE R.66 requirements. No other bus
manufacturer requested an extension for the compliance date, including
manufacturers who do not currently produce buses for the European
market or comply with ECE R.66. NHTSA is not convinced by ABC and Van
Hool's argument for a later compliance date due to financial hardship
and supply chain delays during the COVID pandemic because no other
manufacturer requested such an extension in the compliance date, even
though they were also affected by the pandemic. We believe that any
design and manufacturing changes to comply with FMVSS No. 227 can be
done within 3 years. Therefore, NHTSA declines to extend the lead time
for the final rule.
IV. Correction
While reviewing the final rule, NHTSA noticed a section reference
in the regulatory text that needs to be updated. During development of
the final rule, paragraph S6.3 of the regulatory text was renamed S7.
Subsequently, S6.3.1 through S6.3.6 were renamed S7(a) through S7(f).
In S6.1.4, there is a reference to what was originally named S6.3.1 but
was not updated to reference the newly named S7(a). The agency is
correcting S6.1.4 to change a reference from S6.3.1 to S7(a).
V. Rulemaking Analyses and Notices
Executive Order (E.O.) 12866 (Regulatory Planning and Review), E.O.
13563, and DOT Rulemaking Procedures
The agency has considered the impact of this rulemaking action
under E.O. 12866, E.O. 13563, and the Department of Transportation's
administrative rulemaking orders and procedures. This rulemaking was
not reviewed by the Office of Management and Budget under E.O. 12866,
``Regulatory Planning and Review.'' The rulemaking action has also been
determined to be not of ``special note to the Department'' under DOT
Order 2100.6A.
This document makes a minor adjustment to the definition of
``transit bus,'' and slightly revises the maximum allowable weight of
objects intruding into the survival space during the rollover test. The
minimal impacts of today's amendment do not warrant preparation of a
regulatory evaluation.
Executive Order 13609: Promoting International Regulatory Cooperation
The policy statement in section 1 of E.O. 13609 provides, in part:
The regulatory approaches taken by foreign governments may differ from
those taken by U.S. regulatory agencies to address similar issues. In
some cases, the differences between the regulatory approaches of U.S.
agencies and those of their foreign counterparts might not be necessary
and might impair the ability of American businesses to export and
compete internationally. In meeting shared challenges involving health,
safety, labor, security, environmental, and other issues, international
regulatory cooperation can identify approaches that are at least as
protective as those that are or would be adopted in the absence of such
cooperation. International regulatory cooperation can also reduce,
eliminate, or prevent
[[Page 77531]]
unnecessary differences in regulatory requirements.
As mentioned in this preamble, the agency has considered regulatory
approaches taken by foreign governments (namely, the European Union in
ECE R.66) and decided to base FMVSS No. 227 on ECE R.66. In addition to
the goal of reducing unnecessary differences in regulatory requirements
between the U.S. and its trading partners, the agency has found the ECE
R.66 test to be the most suitable test available for ensuring a minimum
reasonable level of protection for passengers traveling in buses that
are associated with the highest crash risk. While NHTSA has determined
that it is not able to adopt the entirety of ECE R.66 and has adjusted
the weight of objects allowed to enter the survival space, which is not
in ECE R.66, the agency has explained its rationale for its decisions
in the relevant sections of the December 29, 2021, final Rule (86 FR
74270).
Regulatory Flexibility Act
Pursuant to the Regulatory Flexibility Act (5 U.S.C. 601 et seq.,
as amended by the Small Business Regulatory Enforcement Fairness Act
(SBREFA) of 1996), whenever an agency is required to publish a notice
of rulemaking for any proposed or final rule, it must prepare and make
available for public comment a regulatory flexibility analysis that
describes the effect of the rule on small entities (i.e., small
businesses, small organizations, and small governmental jurisdictions).
The Small Business Administration's regulations at 13 CFR part 121
define a small business, in part, as a business entity ``which operates
primarily within the United States.'' (13 CFR 121.105(a)). No
regulatory flexibility analysis is required if the head of an agency
certifies that the rule will not have a significant economic impact on
a substantial number of small entities. The SBREFA amended the
Regulatory Flexibility Act to require Federal agencies to provide a
statement of the factual basis for certifying that a rule will not have
a significant economic impact on a substantial number of small
entities.
NHTSA has considered the effects of this rulemaking action under
the Regulatory Flexibility Act. Per 13 CFR 121.201, the Small Business
Administration's size standards regulations used to define small
business concerns, manufacturers of the vehicles covered by this rule
fall under North American Industry Classification System No. 336111,
Automobile Manufacturing, which has a size standard of 1,000 employees
or fewer. NHTSA estimates that there are 26 manufacturers of these
types of vehicles in the United States (including manufacturers of
motorcoaches, cutaway buses, second-stage motorcoaches, and other types
of large buses covered by this rule). Using the size standard of 1,000
employees or fewer, we estimate that approximately 10 of these 26
manufacturers are considered small businesses.
I certify that this final rule will not have a significant economic
impact on small entities. The amendments made to the original final
rule do not directly result in any increased costs to the
manufacturers. The amended transit bus definition results in fewer
buses needing to comply with the final rule, but NHTSA believes the
number of affected buses would be small. Increasing the mass limit of
objects permitted to enter the survival space from 15 grams to 60 grams
permits more fragments to enter the survival space, but the 60-gram
limit still ensures that injurious items are not permitted in the
survival space.
Executive Order 13132 (Federalism)
NHTSA has examined today's final rule pursuant to E.O. 13132 (64 FR
43255, August 10, 1999) and concluded that no additional consultation
with States, local governments, or their representatives is mandated
beyond the rulemaking process. The agency has concluded that the rule
does not have sufficient federalism implications to warrant either
consultation with State and local officials or preparation of a
federalism summary impact statement. The rule does not have
``substantial direct effects on the States, on the relationship between
the National Government and the States, or on the distribution of power
and the responsibilities among the various levels of government.''
NHTSA rules can have preemptive effect in two ways. First, the
National Traffic and Motor Vehicle Safety Act contains an express
preemption provision that when a motor vehicle safety standard is in
effect under this chapter, a State or a political subdivision of a
State may prescribe or continue in effect a standard applicable to the
same aspect of performance of a motor vehicle or motor vehicle
equipment only if the standard is identical to the standard prescribed
under the chapter. 49 U.S.C. 30103(b)(1). It is this statutory command
by Congress that preempts any non-identical State legislative and
administrative law addressing the same aspect of performance.
The express preemption provision described above is subject to a
savings clause under which ``[c]ompliance with a motor vehicle safety
standard prescribed under this chapter does not exempt a person from
liability at common law.'' 49 U.S.C. 30103(e). Pursuant to this
provision, State common law tort causes of action against motor vehicle
manufacturers that might otherwise be preempted by the express
preemption provision are generally preserved. However, the Supreme
Court has recognized the possibility, in some instances, of implied
preemption of State common law tort causes of action by virtue of
NHTSA's rules--even if not expressly preempted.
This second way that NHTSA rules can preempt is dependent upon the
existence of an actual conflict between an FMVSS and the higher
standard that would effectively be imposed on motor vehicle
manufacturers if someone obtained a State common law tort judgment
against the manufacturer--notwithstanding the manufacturer's compliance
with the NHTSA standard. Because most NHTSA standards established by an
FMVSS are minimum standards, a State common law tort cause of action
that seeks to impose a higher standard on motor vehicle manufacturers
will generally not be preempted. However, if and when such a conflict
does exist--for example, when the standard at issue is both a minimum
and a maximum standard--the State common law tort cause of action is
impliedly preempted. See Geier v. American Honda Motor Co., 529 U.S.
861 (2000).
Pursuant to E.O. 13132, NHTSA has considered whether this rule
could or should preempt State common law causes of action. The agency's
ability to announce its conclusion regarding the preemptive effect of
one of its rules reduces the likelihood that preemption will be an
issue in any subsequent tort litigation.
To this end, the agency has examined the nature (e.g., the language
and structure of the regulatory text) and objectives of this final rule
and does not foresee any potential State requirements that might
conflict with it. NHTSA does not intend that this final rule preempt
state tort law that would effectively impose a higher standard on motor
vehicle manufacturers than that established by this rule. Establishment
of a higher standard by means of State tort law would not conflict with
the standard issued by this final rule. Without any conflict, there
could not be any implied preemption of a State common law tort cause of
action.
[[Page 77532]]
Unfunded Mandates Reform Act (UMRA)
The UMRA of 1995 requires Federal agencies to prepare a written
assessment of the costs, benefits and other effects of proposed or
final rules that include a Federal mandate likely to result in the
expenditure by State, local or tribal governments, in the aggregate, or
by the private sector, of more than $100 million annually (adjusted
annually for inflation, with base year of 1995). This final rule will
not result in expenditures by State, local or Tribal Governments, in
the aggregate, or by the private sector in excess of $100 million
annually.
National Environmental Policy Act (NEPA)
NHTSA has analyzed this final rule for the purposes of the NEPA.
The agency has determined that implementation of this action will not
have any significant impact on the quality of the human environment.
Executive Order 12988 (Civil Justice Reform)
With respect to the review of the promulgation of a new regulation,
section 3(b) of E.O. 12988, ``Civil Justice Reform'' (61 FR 4729,
February 7, 1996) requires that Executive agencies make every
reasonable effort to ensure that the regulation: (1) Clearly specifies
the preemptive effect; (2) clearly specifies the effect on existing
Federal law or regulation; (3) provides a clear legal standard for
affected conduct, while promoting simplification and burden reduction;
(4) clearly specifies the retroactive effect, if any; (5) adequately
defines key terms; and (6) addresses other important issues affecting
clarity and general draftsmanship under any guidelines issued by the
Attorney General. This document is consistent with that requirement.
Pursuant to this Order, NHTSA notes as follows. The issue of
preemption is discussed above. NHTSA notes further that there is no
requirement that individuals submit a petition for reconsideration or
pursue other administrative proceeding before they may file suit in
court.
Paperwork Reduction Act (PRA)
Under the PRA of 1995, a person is not required to respond to a
collection of information by a Federal agency unless the collection
displays a valid Office of Management and Budget (OMB) control number.
This rulemaking action would not establish any new information
collection requirements.
National Technology Transfer and Advancement Act (NTTAA)
Under the NTTAA of 1995 (Pub. L. 104-113), all Federal agencies and
departments shall use technical standards that are developed or adopted
by voluntary consensus standards bodies, using such technical standards
as a means to carry out policy objectives or activities determined by
the agencies and departments.
Voluntary consensus standards are technical standards (e.g.,
materials specifications, test methods, sampling procedures, and
business practices) that are developed or adopted by voluntary
consensus standards bodies, such as the International Organization for
Standardization and the Society of Automotive Engineers. The NTTAA
directs us to provide Congress, through OMB, explanations when we
decide not to use available and applicable voluntary consensus
standards.
There are no voluntary consensus standards applicable to this final
rule that have not been previously discussed in the December 29, 2021
final rule.
Plain Language
Executive Order 12866 requires each agency to write all rules in
plain language. Application of the principles of plain language
includes consideration of the following questions:
Have we organized the material to suit the public's needs?
Are the requirements in the rule clearly stated?
Does the rule contain technical language or jargon that
isn't clear?
Would a different format (grouping and order of sections,
use of headings, paragraphing) make the rule easier to understand?
Would more (but shorter) sections be better?
Could we improve clarity by adding tables, lists, or
diagrams?
What else could we do to make the rule easier to
understand?
If you have any responses to these questions, please write to us
with your views.
List of Subjects in 49 CFR Part 571
Imports, Motor vehicle safety, Motor vehicles, Reporting and
recordkeeping requirements, Rubber and rubber products.
In consideration of the foregoing, NHTSA amends 49 CFR part 571 as
follows:
PART 571--FEDERAL MOTOR VEHICLE SAFETY STANDARDS
0
1. The authority citation for part 571 continues to read as follows:
Authority: 49 U.S.C. 322, 30111, 30115, 30117, and 30166;
delegation of authority at 49 CFR 1.95.
0
2. Section 571.227 is amended by:
0
a. Revising the definition of ``Transit bus'' in S4;
0
b. Revising S5.1(a); and
0
c. Revising the introductory text of S6.1.4.
The revisions read as follows:
Sec. 571.227 Standard No. 227; Bus rollover structural integrity.
* * * * *
S4. * * *
Transit bus means a bus that is equipped with a stop-request system
sold for public transportation provided by, or on behalf of, a Federal,
State, or local government and that is not an over-the-road bus.
* * * * *
S5.1 * * *
(a) Items separated from the vehicle and with a mass less than 60.0
grams that enter the survival space will not be considered for this
evaluation of survival space intrusion.
* * * * *
S6.1.4 The tilting platform is equipped with rigid wheel supports
on the top surface as illustrated in Figure 3 of this section (figure
provided for illustration purposes only). At each vehicle axle, the
wheel closest to the platform's axis of rotation is supported. The
rigid wheel supports are positioned to make contact with the outboard
tire sidewall of the supported wheels with the vehicle positioned as
specified in S7(a) to prevent sliding of the vehicle during the test.
Each rigid wheel support has the following dimensions:
* * * * *
Authority: 49 U.S.C. 322, 30111, 30115, 30117, 30122 and 30166;
delegation of authority at 49 CFR 1.95.
Ann Carlson,
Acting Administrator.
[FR Doc. 2023-24381 Filed 11-9-23; 8:45 am]
BILLING CODE 4910-59-P