On Tuesday, April 8, 2025, the President issued a Presidential Proclamation exempting specified stationary sources, listed in Annex I of the Proclamation, from compliance with the “National Emissions Standards for Hazardous Air Pollutants: Coal- and Oil-Fired Electric Utility Steam Generating Units Review of the Residual Risk and Technology Review” (89 Federal Register 38508) (the “Rule”). A copy of the Proclamation and Annex I list is available HERE. As specified in the Proclamation, the President’s exemption extends the compliance deadline for two (2) years beyond the Rule’s current compliance date (i.e., for the period beginning July 8, 2027 through July 8, 2029). During the 2-year exemption period, the coal-fired sources listed in Annex I are subject to the compliance requirements that they are currently subject to under the Mercury and Air Toxics Standards (MATS) as the MATS Rule existed before the “RTR” MATS Rule (89 Federal Register 38508).
Facilities listed in Annex I must maintain compliance with the pre-RTR MATS standards. Monitoring, reporting, and quality assurance programs should continue to follow the requirements in place before the 2024 RTR amendments. Affected sources not listed in Annex I must comply with the RTR MATS Rule requirements effective July 8, 2027. It is unclear if MATS affected sources not listed in Annex I can request a similar Presential exemption.
While the exemption provides temporary relief to some sources, facilities should continue preparing for eventual compliance with the RTR MATS Rule. Proactive planning and system readiness are essential for long-term compliance.
For more information or to schedule a compliance consultation, please contact VIM Technologies, Inc. (VIM). VIM remains committed to being a trusted partner in environmental compliance, helping clients navigate regulatory changes with confidence and precision.
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