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California Air Resources Board proposing amendments to the Tractor-Trailer GHG Regulation

The amendments being considered are: (1) possible delay of initial compliance by one year. (2) Add flexibility to reporting requirements. (3) Add an exemption for "storage trailers"  See also: Amendments to the Bus and Truck Regulations Scheduled for August

From: <>
Subject: hdghg -- California Air Resources Board proposing amendments to the Tractor-Trailer GHG Regulation
Date: Thursday, March 25, 2010, 11:15 AM

The California Air Resources Board (ARB or Board) plans to
consider regulatory amendments to the Heavy-Duty Vehicle
Greenhouse Gas Emission Reduction Measure (Tractor-Trailer GHG
Regulation) at a hearing planned for late summer 2010. At that
time, the Board will also consider amendments to the Truck and
Bus Regulation. The proposed amendments to the Tractor-Trailer
GHG Regulation include the following:

* Add a second optional large fleet compliance schedule (Option
2) that would delay initial compliance by one year. This would
allow affected large fleets that miss the July 1, 2010 reporting
deadline for the existing compliance schedule (Option 1) to be
able to phase in compliance of their trailers, beginning one year
later, but at an accelerated rate.

* Add flexibility to the reporting requirements for both large
and small trailer fleets that choose to participate in an
optional trailer fleet compliance schedule. The proposed
amendment would allow these fleets to either report the specific
trailers brought into conformance up front, as currently
required, or to report the specific trailers they brought into
conformance each year, at the end of each year.

* Add an exemption for “storage trailers” that would exempt them
from the aerodynamic technology and low rolling resistance tire
requirements of this regulation. Owners would need to register
with ARB for this exemption.

* Miscellaneous minor clean-up language

Additional information is available at, or you may call 866-6DIESEL
(866-634-3735), or send an email to