Document rBzGMLjMQbdXGvNb8mvoegaKa

OLhoist March 26, 2025 Mr. William C. Herz Executive Director National Lime Association 200 North Glebe Road Suite 800 Arlington, Virginia 22203 Dear Mr. Herz, As Chief Executive Officer of Lhoist North America, I hereby authorize the National Lime Association (NLA) to submit a request on our behalf for a two-year presidential exemption of our major source lime plants pursuant to Clean Air Act 112(i)(4) from the requirements of the final rule titled: "National Emission Standards for Hazardous Air Pollutants: Lime Manufacturing Plants Technology Review" (89 FR 57738; July 16, 2024) (Lime Rule). Such exemption, if granted, would extend the compliance date from July 16, 2027 to July 16, 2029, while EPA reconsiders the Lime Rule. The facilities in this request include the following major source lime plants owned and controlled by Lhoist North America: Montevallo Plant (FRS ID: 110041200642) O'Neal Plant (FRS ID: 110008056584) Ste. Genevieve Plant (FRS ID: 110018008378) Kimballton Plant (FRS ID: 110020671450) Apex Plant (FRS [D: l 10043816074) Nelson Plant (FRS ID: 110008061453) The emissions standards subject to this exemption include hazardous air pollutant (HAP) standards for hydrogen chloride, mercury, organics, and dioxins & furans. NLA will provide the agency with additional information on why the technology to implement the standard is not available and why it is in the national security interests of the United States to grant the exemption. Sincere! ipp Niemann Chief Executive Officer Lhoist North America Sierra Club FOIA 2025-EPA-04883 ED_018388_00000249-00016 SC_EVERSPLIT0006032