Revisions to the Arizona State Implementation Plan, Maricopa County Air Quality Department
air-emissions · Rule · Published 2009-10-14 · Effective 2009-12-14 · AZ · 74 FR 52693
Document
Document number
E9-24549
Federal Register citation
74 FR 52693
CFR reference
40 CFR 52
Type
Rule
Action
Direct final rule.
Category
air-emissions
Publication date
2009-10-14
Effective date
2009-12-14
State
AZ
EPA docket
EPA-R09-OAR-2009-0339
Abstract
EPA is taking direct final action to approve revisions to the Maricopa County Air Quality Department (MCAQD) portion of the Arizona State Implementation Plan (SIP). These revisions concern particulate matter (PM) emissions and precursors from steam generating units, cogeneration units, stationary gas turbines, process heaters and internal combustion engines. We are approving local rules that regulate these emission sources under the Clean Air Act as amended in 1990 (CAA or the Act).