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Proposed Rule 24 Jul 2025 compliance, environmental protection, regulation, environmental, administrative practice and procedure, reporting and recordkeeping requirements, incorporation by reference, intergovernmental relations, ozone, air pollution control, volatile organic compounds, air quality, nitrogen dioxide, particulate matter, california, permitting, mojave desert

🌍EPA Proposes Conditional Approval for Mojave Desert Air Permits

The Environmental Protection Agency (EPA) is proposing conditional approval of five permitting rules as a revision to the Mojave Desert Air Quality Management District (MDAQMD) portion of the California State Implementation Plan (SIP). These are revisions to the District's New Source Review (NSR) air permitting program rules for new and modified sources of air pollution under the Clean Air Act (CAA or "Act"). The submitted rules address deficiencies identified in a previous limited disapproval action and incorporate other revisions related to the NSR permitting requirements. If finalized, this action will update the MDAQMD's current SIP with the revised rules. As a separate action in this Federal Register, we are making an interim final determination that will stay or defer the imposition of CAA sanctions associated with our previous limited disapproval action.

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Rule 19 May 2025 ozone, california, epa, environmental protection, mojave desert, air pollution control, carbon monoxide, air quality, intergovernmental relations, emissions, nitrogen oxides, compliance, reporting and recordkeeping requirements, particulate matter, incorporation by reference

🌫️EPA Approves Air Quality Regulation for Mojave Desert Region

The Environmental Protection Agency (EPA) is taking final action to approve a revision to the Mojave Desert Air Quality Management District (MDAQMD) portion of the California State Implementation Plan (SIP). This revision concerns emissions of oxides of nitrogen (NO<INF>X</INF>) from industrial, institutional, and commercial boilers, steam generators, and process heaters. We are approving a local rule that regulates these emission sources under the Clean Air Act (CAA or "Act").

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