Approval and Promulgation of Air Quality Implementation Plans; PA; Revisions to Allegheny County Articles XX and XXI

Résumé

EPA proposes to approve the State Implementation Plan (SIP) revision submitted by the Commonwealth of Pennsylvania on behalf of Allegheny County. EPA is proposing approval of: A recodification of Allegheny County's air pollution control regulations, from articles XX to XXI; revisions of Allegheny County's article XXI regulations pertaining to general administrative provisions, emissions standards, emergency episode plans, test methods, and the permitting provisions for new and modified sources; approval of new and revised definitions associated with the article XXI provisions; and removal from the SIP of outdated and outmoded article XX provisions which are no longer codified in article XXI. In the final rules section of this Federal Register, EPA is approving the State's SIP submittal as a direct final rule without prior proposal because the Agency views this as a noncontroversial submittal and anticipates no adverse comments. A more detailed description of the state submittal and EPA's evaluation are included in a Technical Support Document (TSD) prepared in support of this rulemaking action. A copy of the TSD is available, upon request, from the EPA Regional Office listed in the