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Pennsylvania
Bureau of Air Quality

Cars/Trucks

Diesel Emissions

Diesel engines have been and will likely continue to be a vital workhorse of our economy, powering large trucks, busses, farm, railroad, marine and construction equipment. However, diesel engine exhaust contains harmful pollutants in a complex mixture of gases and particulates. We are all potentially exposed to pollution from diesel vehicles. Reducing pollution from heavy-duty trucks and buses is part of the nation's clear air plan. Steps are being taken in Pennsylvania and nationwide to make this equipment less polluting.

Retrofit Your Fleet

Diesel Retrofit Information
Technology, funding and fleets that are moving ahead!

Reduce Idling

Diesel Idling Information
Trucks and buses waste fuel and create emissions from unnecessary idling. Improved management and technology can cut unnecessary idling.

Local Initiatives

A coalition of diverse partners with a mutual interest in reducing air pollution from diesel engines in the greater Philadelphia area.

Reducing Pollution from Diesel Engines in Pittsburgh
Yesterday, Today and for the Future

COME CELEBRATE PITTSBURGH’S PROGRESS TO REDUCE DIESEL EMISSIONS and CHART OUR NEXT STEPS TO REDUCE DIESEL POLLUTION

Regional Initiatives

The Mid-Atlantic Regional Air Management Association (MARAMA) and U.S. EPA Region III have established the Mid-Atlantic Diesel Collaborative, a new regional effort to reduce diesel related emissions. Pennsylvania invites the participation of fleet operators of all kinds, local governments, equipment vendors and distributors and others interested in reducing diesel emissions.

Regulatory Information

Federal
Rules have been developed by EPA for the first phase of a two-part strategy to significantly reduce harmful diesel emissions from heavy-duty trucks and buses, as well as, new quality requirements for diesel fuel to enable the use of a new generation of emission control technologies for diesel engines.

BulletEPA Program Information for:
   Diesel Highway Vehicles
   
Nonroad Diesel Vehicles

BulletClean Diesel Fuel Alliance

State
Pennsylvania requires heavy-duty highway diesel engines sold in the Commonwealth to have California Certification. This is applicable to model year 2005 and subsequent model years.
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Frequently Asked Questions
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Pa. Regulation

Diesel Truck Smoke Testing

Diesel Truck Smoke Testing in Pa.
Air Quality staff piloted smoke opacity testing as part of the eight-state Trashnet program; a joint effort by state police, public utility commissions, highway departments and other agencies to address numerous municipal waste issues.

Smoke Testing in Other States
Go to the Diesel Technology Forum website.

 

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