EPA Economic Impact Analysis Final Rule

The Environmental Protection Agency (EPA) has finalized a rule pertaining to the economic impact analysis (EIA) for the Petroleum Refinery sector's National Emission Standards for Hazardous Air Pollutants (NESHAP). The document, identified by docket number EPA-HQ-OAR-2023-0282-0110, includes detailed Excel spreadsheets for EIA calculations and a memorandum on secondary impacts for flares, thermal oxidizers, and wastewater controls, dated December 2025.

This final rule provides the basis for regulatory decisions affecting petroleum refineries and potentially related industries. Regulated entities, particularly those operating flares, thermal oxidizers, and wastewater controls, should review the detailed economic and secondary impact analyses to understand the potential costs and implications of the NESHAP standards. While a specific compliance deadline is not explicitly stated in the provided metadata, the effective date of March 18, 2026, suggests that entities should prepare for implementation or further action related to these standards.