Federal Register #2026-14260

EPA Proposed Approval of Missouri NOX Emissions Rule Revisions

This opportunity involves a proposed regulatory action by the Environmental Protection Agency (EPA) regarding Missouri's air quality rules for nitrogen oxide (NOX) emissions from large stationary internal combustion engines. - Government Buyer: - Environmental Protection Agency (EPA) - OEMs and Vendors: - No specific OEMs or vendors are mentioned, as this is not a procurement action - Products/Services Requested: - No products or services are being requested or procured - Notable Requirements: - Approval of revisions to Missouri's State Implementation Plan (SIP) for NOX emissions - Updates to reporting, recordkeeping, and compliance requirements - Incorporation of other state rules by reference - Addition of definitions specific to the rule - Exemption for certain spark-ignited internal combustion engines emitting 25 tons or less of NOX during the ozone season - EPA finds revisions will not interfere with attainment or maintenance of ozone NAAQS - This is a regulatory approval, not a procurement or contract opportunity

Description

The Environmental Protection Agency (EPA) is proposing to approve revisions to the Missouri State Implementation Plan (SIP) related to control of nitrogen oxide (NOX) emissions from large stationary internal combustion engines. The revisions include reformatted and revised reporting, recordkeeping, and compliance requirements, incorporation of other state rules by reference, addition of definitions specific to the rule, and an exemption for certain spark-ignited internal combustion engines emitting 25 tons or less of NOX during the ozone season. The EPA finds that these revisions will not interfere with attainment or maintenance of the ozone National Ambient Air Quality Standard (NAAQS). Comments on the proposed rule must be received by August 14, 2026.

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