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School Bus Solutions

Currently the Statewide Truck & Bus rule regulates school buses to comply with reducing diesel emissions. School buses manufactured prior to April 1, 1977 will be required to be removed from service by January 1, 2012. School buses having a 2000 or newer model year engine have to install a Particulate Matter (PM) retrofit device by January 1, 2011.

All remaining buses may meet one of the three proposed compliance options.

Option 1-Best Available Control Technology (BACT) Schedule

Deadline as of January 1	Engine Model Years
2011	2000 and newer
2012	1994 - 1999
2013	1987 - 1993
2014	Pre - 1987

Option 2 - Percent of Total Fleet That Must Comply with PM BACT

Deadline as of January 1	% of Total Fleet Complying with BACT
2011	25 %
2012	50 %
2013	75 %
2014	100 %

Option 3 - PM Fleet Averaging Option
Allows fleet owners to ensure that their fleet average emission rate is at or below the target for a given year.
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More Information on CARB compliance:

The primary link to the California Air Resources Website for Diesel Emissions Reduction Compliance: Mobile Vehicles and Equipment

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