# Clean Air Act Operating Permit Program Revisions; California; Amador County Air Pollution Control District, Calaveras County Air Pollution Control District, Great Basin Unified Air Pollution Control District, Northern Sierra Air Quality Management District

**Action Urgency Score:** 20/100

| Field | Value |
|---|---|
| Agency | Environmental Protection Agency |
| Type | Proposed rule |
| Action | Proposed rule. |
| Published | 2026-07-30 |
| Comments close | 2026-08-31 |
| Significant | No |
| CFR parts | 40 CFR 70 |
| Summary | The Environmental Protection Agency (EPA) is proposing to approve revisions to four State of California air districts' Clean Air Act title V program rules to remove emergency affirmative defense provisions. The four districts are the Amador County Air Pollution Control District (ACAPCD), the Calaveras County Air Pollution Control District (CCAPCD), the Great Basin Unified Air Pollution Control District (GBUAPCD), and the Northern Sierra Air Quality Management District (NSAQMD) ("Districts"). This proposed action is being taken in accordance with Federal regulations and the Clean Air Act (CAA o |
| Document number | 2026-15362 |

## Why this score


Source: Federal Register API (Office of the Federal Register) (https://www.federalregister.gov/documents/2026/07/30/2026-15362/clean-air-act-operating-permit-program-revisions-california-amador-county-air-pollution-control). Last refreshed: 2026-11-04T21:40:49.974Z.
Data from the Federal Register API; the published Federal Register document is authoritative. Informational only, not legal advice.