Addendum to Final Phase 1



EPA Heavy-Duty Vehicle and Engine



Greenhouse Gas Emissions Compliance



Report (Model Year 2022)











£%	United States

Environmental Protect
Agency


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Addendum to Final Phase 1
EPA Heavy-Duty Vehicle and Engine
Greenhouse Gets Emissions Compliance
Report (Model Year 2022)

This technical report does not necessarily represent final EPA decisions
or positions. It is intended to present technical analysis of issues using
data that are currently available. The purpose in the release of such
reports is to facilitate the exchange of technical information and to
inform the public of technical developments.

Compliance Division
Office of Transportation and Air Quality
U.S. Environmental Protection Agency

NOTICE

4>EPA

United States
Environmental Protection
Agency

EPA-420-R-22-028C
February 2024


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This addendum to the "Final Phase 1 Heavy-Duty Vehicle and Engine Greenhouse Gas Emissions
Compliance Report (Model Years 2014 - 2020)" supplements the report with Model Year 2022 data.

This addendum is part of the U.S. Environmental Protection Agency's (EPA's) commitment to provide
the public with information about the heavy-duty vehicle and engine manufacturers' performance in
meeting the agency's greenhouse gas emission (GHG) standards. The comprehensive, previously
published report as well as the addendum with credit data through model year 2021 are located on the
EPA website: https://www.epa.gov/coriipliarice-arid-fuel-ecorioriiy-data/epa-heavy-duty-vehicle-arid-
engine-greenhouse-gas-emissions. EPA recognizes significant stakeholder interest in the compliance
status of manufacturers subject to the regulatory programs. We are providing this supplemental data
summary in advance of the next full report, anticipated to be published in late 2024 or early 2025.

In 2011, EPA, along with the Department of Transportation's National Highway Traffic Safety
Administration (NHTSA), adopted the first-ever greenhouse gas emission and fuel efficiency standards
for heavy-duty engines and vehicles. The comprehensive program the agencies created was designed to
address the intertwined challenges of reducing dependence upon oil, achieving energy security, and the
amelioration of global climate change. The program also served to enhance American competitiveness
and job creation, benefit consumers and businesses by reducing the costs of transportation of goods,
and spur growth in the clean energy sector. The Phase 1 Heavy-Duty Vehicle and Engine Greenhouse
Gas Rule became mandatory in 2014 and fully phased-in by the 2017 model year. The objective of the
Phase 1 program was to reduce GHG emissions from the heavy-duty sector, the transportation sector's
second largest contributor to GHG emissions. The program aimed to expand the use of more efficient
commercially available technologies.

The Phase 2 Heavy-Duty Vehicle and Engine Greenhouse Gas Rule was adopted in 2016 and began
implementation with the 2021 model year. In designing the Phase 2 program, EPA considered credit
balances available after the Phase 1 program and concluded that manufacturers should be allowed to
largely carry the Phase 1 credit balances into the Phase 2 program. However, some restrictions were
adopted for certain circumstances, primarily to avoid the potential for credit disparities to disrupt the
competitive marketplace. Nevertheless, the quantity of credits potentially being carried into the Phase
2 program was deemed sufficiently large to be considered in setting the stringency of the Phase 2
standards (i.e., the Phase 2 standards are more stringent than they otherwise would have been had
manufacturers not demonstrated the ability to over comply with the Phase 1 standards).

The commercial transportation industries that use the products covered through these regulations are
incredibly diverse with a wide range of operating and use patterns. As a result, the heavy-duty vehicle
and engine industry is itself quite diverse and offers an almost unbelievable range of different products
and options in order to best serve the needs of their customers. EPA and NHTSA in developing the
Phase 1 and 2 programs, included a number of design elements intended to improve fuel consumption
and lower GHG emissions without limiting the ability of manufacturers to offer the diverse range of
products their customers expected and need. These flexibilities were expected to provide sufficient
lead time for manufacturers to make necessary technological improvements, help increase the rate of
which new technologies can be implemented, and reduce the overall cost of the program, without
compromising overall environmental objectives. The primary flexibility is an engine and vehicle
averaging, banking, and trading (ABT) program in which C02 credits may be generated for
vehicles/engines that overachieve, relative to the standards. With these ABT provisions, manufacturers
can offer the right product for the right consumer need (some of which may over or under perform
against the fleet average GHG standards), balance market fluctuations impacting their sales volumes,
and still move the entire fleet of vehicles toward increasing levels of energy efficiency and lower GHG

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emissions. The EPA ABT program allows for emission credits to be averaged, banked, or traded within
each of the "averaging sets" described in this interim report, allowing manufacturers the opportunity to
comply on a fleet average basis with the emission standards. Participation in this ABT program is
optional and manufacturers can alternatively choose to certify all of their heavy-duty vehicles/engines
to meet the applicable standards.

This addendum provides an overview of the GHG compliance status of manufacturers of heavy-duty
combination tractors, vocational vehicles, and the engines that power these vehicles. Heavy-duty
combination tractors are the semi-trucks that typically pull trailers and are built to mainly move freight.
Vocational vehicles consist of a very wide variety of truck and bus types including delivery, refuse, utility,
dump, cement, transit bus, shuttle bus, school bus, emergency vehicles, motor homes, tow trucks, and
many more. This addendum also summarizes the current C02 credit situation at the conclusion of
Model Year 2022 (the second year of the Phase 2 program) for each manufacturer participating in either
of the vehicle or engine ABT programs. Model year 2022 was also the first year that heavy-duty engine
and vehicle entities that meet the small business qualifications of 13 CFR 121.201 were no longer
excluded from these regulations, and thus were required to certify their vehicle/engine products for
introduction into US commerce.

Phase 2 also introduced new vehicle averaging sets for certain types of vocational vehicles by allowing a
manufacturer to optionally certify using the custom chassis provisions of 40 CFR Part 1037. Banking of
excess credits is not allowed for these custom chassis vehicles at the conclusion of a model year. The
vehicle manufacturer must have a positive number of credits or they are deemed non-compliant for the
year. Any excess credits are not able to be banked and carried over for use in future model years. The
credits earned for these custom chassis averaging sets are not presented in this interim report as each
manufacturer that certified using the custom chassis provisions was compliant in Model Year 2022 by
either having a positive credit balance in each of these averaging sets or by using Phase 1 Advanced
Technology credits to offset a negative credit balance. Please refer to the report referenced above for a
better description of Phase 1 Advanced Technology credits and their continued flexibility within the
Phase 2 program.

The success of the heavy-duty GHG program is measured in the industry's ability to create the systems
and processes necessary to demonstrate compliance with the program, improve their products to lower
their GHG emissions and fuel consumption, and finally through their reporting to the Agency
demonstrate that the fleet of vehicles they produced complied with the aggregated fleet standards. It
is a significant accomplishment that the entire industry was able to implement and begin complying with
this program and has demonstrated through their reporting that GHG emissions have been reduced to
such an extent that all manufacturers are compliant, and most have created significant credit banks
reflecting better overall fleet performance than the agencies originally projected in setting up the
program.

Table 1 of this addendum documents that all vehicle manufacturers are not merely compliant, but that
all manufacturers participating in ABT have generated a positive banked credit balance through model
year 2022 in each of the three averaging sets for vehicles. This table also presents currently available
Phase 1 Advanced Technology banked credits which maintain their flexibility into the Phase 2 program
until they expire (see report referenced above for additional information about these flexibilities).
Similarly, Table 2 shows the updated credit balance values for all engine manufacturers in each of the
three averaging sets (Heavy-Duty Spark Ignition engines are not part of this report) after model year
2022 (there were no Advanced Technology credits generated in Phase 1 so there is no corresponding

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column in this table to reflect those credits). All engine manufacturers except for Ford Motor and Volvo
Group have zero or positive credit balances in each of the averaging sets showing their overall
compliance to the current Phase 2 program. A negative balance is allowed by the regulations, however,
a manufacturer having a negative credit balance may utilize three model years to achieve a zero or
positive credit balance. This is the second consecutive year that Ford Motor has run a deficit in the MHD
engine averaging set which results in a deficit balance of -16,672 Mg of C02, and the first year of
running a deficit for Volvo Group in the HHD Engine averaging set with a deficit balance of -8,634 Mg of
C02.

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Table 1

Heavy-Duty Vehicles Averaging Set Summary

GHG Credits (Mg C02) Banked Summary - Through Model Year

2022



LHD

MHD

HHD

Total



Total Credit

Total Credit

Total Credit

Phase 1 AT

Manufacturer

Balance

Balance

Balance

Credit Balance

ARBOC Specialty



2,952





Autocar



1,952

601,310



Battle Motors



35,253

9,784

3,259

Blue Bird Body



146,178

57,156

233,283

BYD Auto



157,249

313,254



Chanje







715

Chrysler Group

934,168







Daimler Coaches





179



DTNA Trucks



1,685,582

11,647,130



E-One





23,666



El Dorado





21,590



EVO Bus





235



Ferrara Fire





2,457



Ford Motor

3,550,566

1,614,636

8,114



General Motors

129,815

117,026





Gillig LLC



0

95,738

3,098

Hino Manufacturing



6,262

10



Hino Motors

5,395

145,243

1,491



Isuzu Motors

948,155

71,010





Kovatch Mobile





9,732



Mitsubishi Fuso

4,899





9,618

Motor Coach Ind.





103,300

2,046

Navistar, Inc.

22,985

1,859,581

3,232,342



New Flyer



0

102,455

425,198

Nikola





932,817



Oshkosh





75,879



PACCAR, Inc.

346

449,998

4,294,337

14,293

Rosenbauer Motors





4,365



Spartan Fire





6,049



Terex Corporation





6,479



Van Hool





372,264

1,013

Volvo Group



296,438

4,135,967

0

XOS Trucks



21



150,668

TOTALS

5,596,329

6,589,381

26,058,100

843,191


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Table 2

All Heavy-Duty CI Engines - Averaging Set Summary

GHG Credits (Mg C02) Banked Summary - Through Model Year

2022



LHD

MHD

HHD



Credit Balance

Credit Balance

Credit Balance

Manufacturer

Net C02

Net C02

Net C02

Cummins



2,968,111

1,821,794

Detroit Diesel



357,000

1,988,900

Ford Motor

925,975

-16,672



Isuzu Motors

65,489





Navistar

86,684



210,454

PACCAR





1,586,894

Volvo Group





-8,634

Westport Fuel



55,779

48,836

TOTALS

1,078,148

3,308,439

5,599,408


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