From the EPA:

On May 3, 2007, EPA promulgated the final rule titled: National Air Emission Standards for Hazardous Air Pollutants:
Halogenated Solvent Cleaning (the Halogenated Solvent Cleaning rule) pursuant to sections 112(d)(6) and 112(f) of the Clean Air Act. The Halogenated Solvent Cleaning rule set facility-wide emission limits for certain halogenated solvent cleaning machines and a May 3, 2010, compliance deadline.

Following promulgation of the Halogenated Solvent Cleaning rule, the Administrator received several petitions for reconsideration, pursuant to Clean Air Act section 307(d)(7)(B). The purpose of this notice is to initiate a process for responding to certain issues raised in the petitions. We are requesting comment on the particular issues for which we are granting reconsideration, and those issues are identified, in detail, below. Specifically, we are requesting comment on the revised risk assessment, our use of the 2002 National Emissions Inventory data in lieu of the 1999 National Emissions Inventory data, which was used at proposal, our ample margin of safety determination under Clean Air Act section 112(f)(2), our determination under Clean Air Act section 112(d)(6), and the compliance deadline.

DATES: Comments. Comments must be received on or before December 4, 2008.

Please click on the above link for more information.

Relevant Nexreg Compliance Links: Nexreg, CPSC Consumer Label Reviews, OSHA MSDS Authoring.