Environmental Protection Agency Final Rule

C1-2026-05601: Determination of Attainment by the Attainment Date But for International Emissions for the 2015 Ozone National Ambient Air Quality Standards; Phoenix-Mesa Nonattainment Area, Arizona

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What this rule does

This regulation involves a correction to a previous rule regarding air quality standards for ozone in the Phoenix-Mesa area of Arizona. It updates a specific date related to the attainment status of air quality standards by changing "March 23, 2026" to "April 22, 2026."

Plain-language description generated by AI — not the agency’s official summary, which we have not captured for this rule. Read the official text →

The rule, in full

127 words as published, April 06, 2026. View the original →

Federal Register, Volume 91 Issue 65 (Monday, April 6, 2026) [Federal Register Volume 91, Number 65 (Monday, April 6, 2026)] [Rules and Regulations] [Page 17144] From the Federal Register Online via the Government Publishing Office [www.gpo.gov] [FR Doc No: C1-2026-05601] ======================================================================= ----------------------------------------------------------------------- ENVIRONMENTAL PROTECTION AGENCY 40 CFR Part 52 [EPA-R09-OAR-2025-2833; FRL-13057-02-R9] Determination of Attainment by the Attainment Date But for International Emissions for the 2015 Ozone National Ambient Air Quality Standards; Phoenix-Mesa Nonattainment Area, Arizona Correction In rule document 2026-05601 beginning on page 13777 in the issue of Monday, March 23, 2026, make the following correction: On page 13778, in the first column, in the 14th and 15th lines, ``March 23, 2026'' should read ``April 22, 2026''. [FR Doc. C1-2026-05601 Filed 4-3-26; 8:45 am] BILLING CODE 0099-10-D

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