EPA Sends EO NESHAP Reconsideration NPRM to OMB

Yesterday the OMB’s Office of Information and Regulatory Affairs (OIRA) announced that it had received a notice of proposed rulemaking from the EPA on “National Emission Standards for Hazardous Air Pollutants: Ethylene Oxide Emissions Standards for Sterilization Facilities Residual Risk and Technology Review, Reconsideration”.

According to the Spring 2025 Unified Agenda entry for this rulemaking:

“On April 5, 2024, the EPA published the risk and technology review (RTR) of the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Commercial Ethylene Oxide (EtO) Sterilization Facilities (See 89 FR 73293). EPA announced on March 12, 2025 that this rule will be a prioritized rule for reconsideration. The EPA will be reconsidering this action in order to address several issues that are administration priorities and consistent with the direction of the Agency”

Actually, the Ethylene Oxide NESHAP rule was published at 89 FR 24090. The above referenced Federal Register publication was a more generalized look at changing major source classification to area source. There was no mention of EO in that final rule.

 

As with the publication of the Biden Administration regulation, I do not expect to cover this rulemaking in any detail. I will, at least, be acknowledging publication in the appropriate Short Takes post.