Other Top Stories and Links
Admin. Correction to EPA Rule to Remove RFG Oxygen Content Requirement - 05/11/06.
EPA Final Rule for Removal of RFG Oxygen Content Requirement - 05/08/06.
Changes to
EPA Cancels Order for Registration of Platinum GaSaver Fuel Additive - 05/02/06.
Technical Amendments to Hwy and Nonroad Diesel Rules and Rule Proposal- 05/01/06.
EPA to allow Improved Fuel Testing Methods for Five ASTM Test Methods - 04/03/06.
Amendments to Tier 2 Motor Vehicle Emission Regulations - Clean Diesel Vehicles - 03/30/06.
Proposed Controls for Benzene and Toxics from Gasoline and Mobile Sources - 03/29/06.
Final rule - Transportation Conformity for new PM2.5 amd PM10 - 03/10/06.
EPA proposes Benzene and Toxics Reduction for Gasoline and Mobile Sources.
EPA revises Mobile Source Air Toxics (MSAT) default baseline values.
EPA final rule for Transportation Conformity - PM2.5 precursors.
EPA's Transportation and Air Quality web page.
EPA's Mobile Source Air Toxics web page.
Key Federal Register Items
EPA Proposes Changes to NAAQS Particulate Standards
The EPA has proposed changes to the national ambient air quality standards (NAAQS) for particulate matter (PM). The proposed changes appeared in the federal register on January 17, 2006. Under the proposed revisions, the 24-hour standard for fine particles (PM2.5) would be lowered to 35 micrograms per cubic meter. (See FR for Jan. 17, 2006.) An advanced notice of proposed rulemaking for the transition to new or revised standards was published on February 9, 2006.