COMMENT PERIOD ENDS | Proposed Significant Revision to Air Quality Permit for Tucson Electric Power Company

On Feb. 23, 2022, the public comment period ends for the proposal to issue Air Quality Control Significant Revision Permit No. 91093 to Tucson Electric Power Company to incorporate more stringent sulfur dioxide (SO2) emission limitations for Units 1, 2 and 3 at Springerville Generating Station. The public comment period began on Jan. 20, 2022.

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