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National Emission Standards for Hazardous Air Pollutants: Polyether Polyols Production Industry Review

FR Abstract
The U.S. Environmental Protection Agency (EPA) is finalizing amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for the Polyether Polyols (PEPO) Production source category ("PEPO NESHAP") under Clean Air Act (CAA) section 112. Specifically, the EPA is finalizing certain ethylene oxide (EtO)- specific standards pursuant to CAA section 112(d)(6) rather than finalizing the proposed second residual risk review and corresponding amendments pursuant to CAA section 112(f)(2). In addition, the EPA is taking final action addressing certain issues raised in an administrative petition for reconsideration. Lastly, the EPA is finalizing maximum achievable control technology (MACT) standards for certain emission points, work practice standards for certain activities where alternatives are appropriate, performance testing requirements once every five years for certain process vents, and electronic reporting requirements for performance test reports, flare management plans, and periodic reports.
Incorporation
FR Document Number
2026-05261
Federal Register Volume
91
Federal Register Year
2026-03-18
Federal Register Start Page
13116
Federal Register End Page
13195
CFR Citation
40 CFR 63
FR Citation
91 FR 13116
CFR title
40
CFR Part
63
Document Number
ANSI/ASME PTC 19.10
Document Edition
1981
Standard Title
Flue and Exhaust Gas Analyses
Excerpts
storage vessel degassing);  44 44   See 40 CFR 63.1425(f) by reference to 40 CFR 63.113(k) for process vents at PMPUs that produce PEPO products using THF, and 40 CFR 63.1425(h) for all other regulated PEPO process vents. • storage vessel degassing;  45 and 45   See 40 CFR 63.1432(a), by reference to 40 CFR 63.119(a)(6). • planned routine maintenance for storage vessels. 46 46   See 40 CFR 63.1432(a), by reference to 40 CFR 63.119(e)(7). The EPA is also finalizing the proposed requirements
Record Source
www.federalregister.gov