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 Urban Bus Fact Sheet

Transit Fleet Fact Sheet

 

This page last reviewed on June 12, 2009

The Fleet Rule for Transit Agencies is the California Air Resources Board's effort to reduce both criteria pollutant emissions and exposure to toxic air contaminants from urban buses and transit fleet vehicles. The requirements for urban buses differ from the requirements for transit fleet vehicles.  The regulation affects both public transit operators and heavy-duty engine manufacturers.

What am I subject to?

Urban Bus or Transit Fleet Vehicle

Submit Annual Reports On-line

Calculate PM and NOx Emissions


If you wish to receive notices regarding the California Air Resources Board Fleet Rule for Transit Agencies - Urban Bus Program, please sign-up for the listserve. 

If you wish to receive notices regarding the California Air Resources Board Fleet Rule for Transit Agencies - Transit Fleet Vehicles Program, please sign-up for the listserve. 

Scroll down to read recently posted information.

What's New...
 June 10, 2009
The Air Resources Board has verified the Johnson Matthey Advanced Catalyzed Continuously Regenerating Technology (ACCRT) system for select 2002 through 2006 model year heavy-duty diesel engines used in on-road applications including the 2003 model year Detroit Diesel Corporation's Series 60 heavy-duty engine, used in buses by many transit agencies.  The ACCRT reduces emissions of diesel particulate matter by at least 85 percent and is designated as a Level 3 Plus system.  Specific engine families and conditions for which the ACCRT system has been approved may be found in the Executive Order at:  http://www.arb.ca.gov/diesel/verdev/verdev.htm 

 April 7, 2009
The ARB's DECS Installation/Maintenance page is now available. This page is intended to provide guidance to end users of diesel vehicles or equipment who are interested in purchasing verified diesel emission control strategies (DECS) or (VDECs) to comply with ARB diesel regulations. This DECS installs page contains links to documents and general information that will assist owners of diesel vehicles or equipment in this effort.


 April 1, 2009
The purpose of this advisory is to notify transit agencies operating buses with medium-heavy duty diesel engines in conjunction with hybrid systems certified to the urban bus service class of the specific conditions required to maintain the engine’s certification.  The specific conditions can be found in Mail-Out # MSC 09-14 online at:
http://www.arb.ca.gov/msprog/mailouts/msc0914/msc0914.pdf


April 1, 2009
This is to advise public transit agencies that diesel or alternative fueled Transit Fleet Vehicles (TFV) 14,000 pounds (lbs) gross vehicle weight rating (GVWR) or less may not be subject to the Fleet Rules for Transit Agencies.  A TFV is defined as an on-road vehicle greater than 8,500 lbs GVWR powered by a heavy-duty engine (HDE) fueled by diesel or alternative fuel, owned or operated by a transit agency, and which is not an urban bus.  TFV’s with GVWR 14,000 lbs or less with engines not certified to the heavy-duty service class are not subject to the Fleet Rule for Transit Agencies.  More information can be found in Mail-Out #MSC 09-13 online at:
http://www.arb.ca.gov/msprog/mailouts/msc0913/msc0913.pdf