Vote: approved

Item Text

95. AQ-2025-004-RULE 230 (GENERAL PERMITS) (Supervisor Districts: All Districts) Set a public hearing, as required by Arizona Revised Statutes (A.R.S.) Section 49-479(b), for June 24, 2026, at 9:30 a.m. to solicit comments on the proposed revision of Maricopa County Air Pollution Control Regulations, Rule 230 (General Permits) and the associated proposed revision to the Arizona State Implementation Plan (SIP). Following the public hearing, the Board is requested to adopt the proposed amendments to the rule and to approve submission of the amended rule as a revision to the Arizona SIP. The purpose of Rule 230 is to establish procedures for developing and issuing general permits for similar sources subject to the same or substantially similar regulatory requirements. Rule 230 is a part of the Maricopa County Air Quality Department’s (MCAQD) New Source Review (NSR) rules which make up the preconstruction permitting program. MCAQD currently has general permits for 12 facility classes for smaller Non-Title V sources. In 2019, MCAQD submitted Rule 230 to the U.S. Environmental Protection Agency (EPA) along with six other MCAQD rules that make up the NSR permitting program as a revision to the Arizona SIP. In 2022, the EPA approved six of the seven NSR rules, deferring action on Rule 230. The EPA later provided rule approvability comments on Rule 230. MCAQD is proposing revisions to address these comments by ensuring the rule complies with the general SIP requirements for NSR programs in the Code of Federal Regulations (CFR) under 40 CFR 51.160 through 164. Additionally, MCAQD is proposing to revise Rule 230 to expand the general permit program by allowing larger Non-Title V and Title V sources to potentially qualify for general permits. These revisions may reduce costs for these businesses due to reduced review time and lower application fees compared to individual permits. (C-85-26-015-X-00)

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