Requirements for Diesel Trucks in California As of Jan 1st

California Emission Reduction

Requirements for Diesel Truck and Equipment Owners

All owners of diesel trucks, buses, trailers and transport refrigeration units, or "reefers," that operate in California, are required to take steps to reduce air pollution. Reducing emissions from existing equipment is necessary to meet federally imposed clean air standards and to reduce the adverse health effects from pollution. Funding opportunities may also be available to lower emissions earlier than required. This document summarizes requirements and key dates for upgrading existing equipment:

Idling Limits restrict diesel vehicles from idling more than five minutes, and idling in school zones is not allowed with limited exceptions.

The Heavy-Duty Vehicle Inspection Program uses random roadside inspections to verify that diesel engines do not smoke excessively and are tamper free.

Emission Control Labels must be affixed to engines of all commercial heavy-duty diesel vehicles, and must be legible as proof the engine, at minimum, meets U.S. federal emissions standards for the engine model year.

The Periodic Smoke Inspection Program requires owners of California based fleets of two or more diesel vehicles to perform annual smoke opacity tests and to keep records for at least two years for each vehicle. The requirement does not apply to cars or trucks that must undergo a Smog Check.

HEAVIER VEHICLES with a GVWR more than 26,000 lbs. need engine upgrades as shown in the schedule below (no reporting is required).

Schedule for Heavier Trucks and Buses

LIGHTER VEHICLES with a GVWR 26,000 lbs. or less need to be upgraded to 2010 model year engines or to newer models as shown in the table. No retrofit PM filters or reporting is required. Engine Year	PM Filter*	2010 MY Engine
Pre-1994	Not required	January 1, 2015
1994-1995	Not required	January 1, 2016
1996-1999	January 1, 2012	January 1, 2020
2000-2004	January 1, 2013	January 1, 2021
2005 or newer	January 1, 2014	January 1, 2022
2007-2009	Already equipped	January 1, 2023

Instead, truck owners can report by January 31, 2012 to take advantage of credits and provisions including a 5 year PM filter phase-in option that delays replacements until January 1, 2020.

For more complete info http://http://www.arb.ca.gov/msprog/onrdiesel/documents/multirule.pdf