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arbcombo -- Second Public Workshop for California Adoption of Phase 2 GHG Standards and Potential Amendments to Tractor-Trailer GHG Regulation

Posted: 28 Jul 2017 11:12:34
The California Air Resources Board (CARB or Board) invites you to
participate in a public workshop to learn more about the proposed
California Phase 2 Greenhouse Gas (GHG) regulation and potential
amendments to CARBís existing Heavy-Duty Vehicle GHG Emission
Reduction Regulation (Tractor-Trailer GHG regulation). Amendments
to the Tractor-Trailer GHG regulation may include more stringent
emission reduction requirements on 53-foot or longer box-type
trailers and new emission reduction requirements on other types
of trailers (e.g., box-type less than 53 feet long, tankers,
container chassis, and flat beds). 	

This workshop is described further in the workshop notice at
Specific topics to be discussed include the California Phase 2
certification process, the California warranty process, and
updates on areas where California may differ from the federal
Phase 2 program.

Date:		Thursday, August 31, 2017
Time:		9:30 a.m. to 5:00 p.m.
Place:		Cal/EPA Headquarters Building
                Coastal Hearing Room
		1001 I Street, Second Floor 
                Sacramento, California 95814

This workshop will be available via webcast at
https://video.calepa.ca.gov/  for those unable to attend in

For more information about the proposed California Phase 2 GHG
standards, please go to: 

For the potential amendments to tractor-trailer GHG regulation,
please go to:


In December 2013, California harmonized with the federal Phase 1

Adoption of the federal Phase 1 rule provided CARB the ability to
certify new heavy-duty vehicles and engines and enforce those
requirements in the State. In addition, CARBís adoption of the
Phase 1 requirements provided nationwide consistency for vehicle
and engine manufacturers. At the same time, CARB amended the
TTGHG regulation to align with the Phase 1 rule by sunsetting the
2014 and subsequent model year tractor requirements.

Building on the success of the federal Phase 1 rule, in August
2016, U.S. EPA and NHTSA jointly adopted the federal Phase 2
rule, which is more stringent than Phase 1. The federal Phase 2
rule is phased-in over the 2018 through 2027 model years. The
structure of the federal Phase 2 rule is generally similar to
Phase 1, establishing GHG emission standards for tractors,
vocational vehicles, and heavy-duty pickups and vans, and the
engines used in tractors and vocational vehicles. However, the
federal Phase 2 rule also establishes standards for certain
trailers used in combination with tractors. The trailer types
included in Phase 2 are box-type trailers (dry van and
refrigerated van trailers of all lengths), flat bed trailers,
tank trailers, and container chassis. The trailer requirements
include aerodynamic improvements and tire requirements for
box-type trailers, but only tire requirements for the other
trailer types. Although this marks the first time trailers have
been regulated at the federal level, trailers have been regulated
in California since 2010. 

On December 22, 2016, the Truck Trailer Manufacturer Association
(TTMA) filed a lawsuit that challenges and seeks to vacate the
trailer provisions of the federal Phase 2 rule that apply to
trailers. That lawsuit however, does not affect Californiaís
authority to establish standards for trailers hauled by
heavy-duty tractors. 


We welcome and encourage your participation in this workshop.  If
you have any questions regarding the proposed California Phase 2
or potential regulatory changes to Tractor-Trailer GHG
Regulation, please contact Mr. Alex Santos, Staff Air Pollution
Specialist, at (626) 575-6682 or by email at
alex.santos@arb.ca.gov or Ms. Mitzi Magtoto, Air Resources
Engineer, at (916) 323-8975 or by email at

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