Air Plan Approval; Pennsylvania; Liberty Borough Area Second 10-Year PM10 Limited Maintenance Plan
air-emissions · Rule · Published 2023-09-11 · Effective 2023-10-11 · PA · 88 FR 62293
Document
Document number
2023-19286
Federal Register citation
88 FR 62293
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2023-09-11
Effective date
2023-10-11
State
PA
EPA docket
EPA-R03-OAR-2023-0219
Abstract
The Environmental Protection Agency (EPA) is approving into the Pennsylvania state implementation plan (SIP), a limited maintenance plan (LMP) submitted by the Commonwealth of Pennsylvania's Department of Environmental Protection (PADEP or Commonwealth) on behalf of the Allegheny County Health Department (ACHD). This plan addresses the second 10-year maintenance period after redesignation for coarse particulate matter, particulate matter with an aerodynamic diameter less than or equal to a nominal 10 micrometers (PM<INF>10</INF>). A LMP is used to meet the Clean Air Act (CAA or the Act) requirements for formerly designated nonattainment areas that meet certain qualification criteria. EPA has determined that ACHD's second maintenance plan meets applicable CAA requirements.