National Emission Standards for Hazardous Air Pollutants: Lime Manufacturing Plants Amendments

Document Headings Document headings vary by document type but may contain the following: the agency or agencies that issued and signed a document the number of the CFR title and the number of each part the document amends, proposes to amend, or is directly related to the agency docket number / agency internal file number the RIN which identifies each regulatory action listed in the Unified Agenda of Federal Regulatory and Deregulatory Actions See the Document Drafting Handbook for more details. Environmental Protection Agency 40 CFR Part 63 [EPA-HQ-OAR-2017-0015; FRL-5948.1-02-OAR] RIN 2060-AV59 ( printed page 9088) AGENCY: Environmental Protection Agency (EPA). ACTION: Supplemental notice of proposed rulemaking. SUMMARY: This action supplements our proposed amendments to the National Emission Standards for Hazardous Air Pollutants for Lime Manufacturing Plants (Lime Manufacturing NESHAP) published in the Federal Register on January 5, 2023. In that action, the Environmental Protection Agency (EPA) proposed hazardous air pollutant (HAP) emissions standards for the following pollutants: hydrogen chloride (HCl), mercury, total hydrocarbon (THC) as a surrogate for organic HAP, and dioxin/furans (D/F). The EPA is proposing revisions to the proposed emission limits for HCl, mercury, organic HAP, and D/F based on additional information gathered since the publication of the January 5, 2023, proposed rule amendments. We solicit comments on all aspects of this proposed action. DATES: Comments must be received on or before March 11, 2024. Under the Paperwork Reduction Act (PRA), comments on the information collection provisions are best assured of consideration if the Office of Management and Budget (OMB) receives a copy of your comments on or before March 11, 2024. FOR FURTHER INFORMATION CONTACT: For questions about this proposed action contact U.S. EPA, Attn: Mr. Brian Storey, Mail Drop: D143-04, 109 T.W. Alexander Drive, P.O. Box 12055, RTP, North Carolina 27711; telephon…