Draft Document Related to the Review of the National Ambient Air Quality Standards for Particulate Matter

摘要

The EPA is announcing an extension of the public comment period for a draft assessment document titled, Policy Assessment for the Review of the Particulate Matter National Ambient Air Quality Standards--First External Review Draft (75 FR 4067; January 26, 2010). The EPA is extending the comment period that originally was scheduled to end on April 12, 2010. The extended comment period will close on April 26, 2010. The EPA recognizes that this document was released for public comment nine days later than originally anticipated. As a result, the Agency is extending the comment period by two weeks to provide stakeholders and the public with adequate time to conduct appropriate analysis and prepare meaningful comments.