Air Quality State Implementation Plans; Approvals and Promulgations: Utah; Update to Materials Incorporated by Reference

What it does

• •Updates the list of Utah air quality regulations that are incorporated by reference into the federal Code of Federal Regulations (40 CFR Part 52), reflecting approvals by EPA since June 2016.
• •Corrects typographical errors, formatting inconsistencies, and inaccuracies in the tables identifying Utah State Implementation Plan materials, including standardizing rule numbers, dates, and Federal Register citations.
• •Removes duplicate or repealed regulations from the official record and clarifies which specific Utah rules have been federally approved as part of the State Implementation Plan.

Why it matters

• •State Implementation Plans establish control measures and strategies required to meet federal air quality standards; accurate identification of approved regulations is necessary for EPA and public monitoring of state compliance and enforcement.
• •This update ensures the official federal registry correctly reflects which Utah air pollution control regulations are in effect, preventing confusion about enforceable requirements.

Who is affected

• •Utah state environmental and air quality regulators implementing approved air pollution control measures.
• •EPA Region 8 and the public inspecting or enforcing federal air quality requirements in Utah.

What happens next

This final rule is effective as of November 13, 2026, and the updated Utah SIP Compilation materials are available for inspection at EPA Region 8 in Denver and on regulations.gov.