Partial Approval and Disapproval of Air Quality Implementation Plans; Arizona; Infrastructure Requirements for Ozone and Fine Particulate Matter
air-emissions · Rule · Published 2012-11-05 · Effective 2012-12-05 · AZ · 77 FR 66398
Document
Document number
2012-26322
Federal Register citation
77 FR 66398
CFR reference
40 CFR 52
Type
Rule
Action
Final rule.
Category
air-emissions
Publication date
2012-11-05
Effective date
2012-12-05
State
AZ
EPA docket
EPA-R09-OAR-2012-0398
Abstract
EPA is approving in part and disapproving in part State Implementation Plan (SIP) revisions submitted by the state of Arizona pursuant to the requirements of the Clean Air Act (CAA) for the 1997 8- hour ozone national ambient air quality standards (NAAQS) and the 1997 and 2006 NAAQS for fine particulate matter (PM<INF>2.5</INF>). The Clean Air Act requires that each State adopt and submit a SIP for the implementation, maintenance, and enforcement of each NAAQS promulgated by the EPA. Arizona has met most of the applicable requirements. Where EPA is disapproving, in part, Arizona's SIP revisions, several of the deficiencies have already been addressed by a federal implementation plan (FIP). The remaining deficiencies are subject to a two-year deadline for EPA to promulgate a FIP, unless EPA approves an adequate SIP revision prior to that time. EPA remains committed to working with Arizona to develop such a SIP revision.