EPA Proposed Rule: Air Quality Designation

The Environmental Protection Agency (EPA) has posted a document, EPA-R08-OAR-2020-0646-0012, on March 25, 2026, which is related to a proposed rule concerning air quality designations. This document signifies a step in the regulatory process for establishing or revising air quality standards for specific regions.

Regulated entities, particularly those in industries with significant air emissions, should monitor this rulemaking closely. While this posting indicates a proposed action, it suggests that new or revised compliance obligations related to air quality may be forthcoming. Compliance officers should prepare for potential updates to permitting requirements, emissions monitoring, or reporting obligations once the proposed rule is formally published and open for comment.