Partial Approval and Partial Disapproval of Air Quality State Implementation Plans; Arizona; Prevention of Significant Deterioration Infrastructure Requirements for the 2012 Fine Particulate Matter National Ambient Air Quality Standard

The record

Publisher

Federal Register

Agency

Environmental Protection Agency

Source

Federal Register

Kind

Federal Register: proposed rule

Jurisdiction

United States

Topics

Environment

Importance

Notable, the middle of three tiers Kresmion sets by fixed rules from the source's own fields

Published (source time)

2026-08-06 (the source gives a date only)

First seen on Kresmion

2026-10-26 18:24 UTC

The original

• PDF (Federal Register)

Source: Federal Register (federalregister.gov). U.S. government work, public domain.

The publisher's summary

The Environmental Protection Agency (EPA) is proposing to partially approve and partially disapprove a revision to the Arizona State implementation plan (SIP) as meeting the requirements of the Clean Air Act (CAA) for the implementation, maintenance, and enforcement of the 2012 fine particulate matter (PM 2.5 ) national ambient air quality standard (NAAQS or "standards"). The EPA is proposing to approve the portions of Arizona's submission addressing prevention of significant deterioration (PSD) requirements in the permitting jurisdictions of the Arizona Department of Environmental Quality (ADEQ), Maricopa County Air Quality Department (MCAQD), and Pinal County Air Quality Control District (PCAQCD). The EPA is proposing to disapprove the portions of the Arizona submission addressing PSD requirements in the Pima County Department of Environmental Quality (PDEQ) permitting jurisdiction.

The publisher's words, as published.

Federal Register document

Document number

2026-16083

Document type

Proposed Rule

Status

Published