Środowisko i energia · 11.02.2010

Implementation of the New Source Review (NSR) Program for Particulate Matter Less Than 2.5 Micrometers (PM2.5); Notice of Proposed Rulemaking To Repeal Grandfathering Provision and End the PM10 Surrogate Policy

In this action, in response to a petition for reconsideration, EPA is proposing two actions that would end EPA's 1997 policy that allows sources and permitting authorities to use a demonstration of compliance with the prevention of significant deterioration (PSD) requirements for particulate matter less than 10 micrometers (PM 10 ) as a surrogate for meeting the PSD requirements for particulate matter less than 2.5 micrometers (PM 2.5 ). First, in accordance with the Administrator's commitment to the petitioners in a letter dated April 24, 2009, the EPA is proposing to repeal the "grandfathering" provision for PM 2.5 contained in the Federal PSD program. Second, EPA is proposing to end early the PM 10 Surrogate Policy applicable in States that have an approved PSD program in their State Implementation Plan ("SIP-approved States").