1、POWER SUMMIT 2025Presentation:Air Quality Focus Regulatory Update#PublicPower www.PublicPower.org 2Agenda Power Sector Greenhouse Gas Rules and Endangerment Finding NEPA Regulatory and Legislative Reforms Mercury and Air Toxics Standards Coal Ash Update Wastewater Discharge Rules Endangered Species
2、Reforms#PublicPower www.PublicPower.org 3GHG RulemakingOn June 17,2025,EPA issued its proposal,“Repeal of the GHG Emissions Standards for Fossil Fuel-Fired Electric Generating Units”Primary Proposal-Repeal of all regulation of GHG emissions from fossil fuel-fired power plants,which would include 40
3、CFR Part 60,Subpart UUUUb,Subpart TTTT,and Subpart TTTTa and all associated rulemakings,including the 2015 New Source Performance Standards(2015 NSPS)under Clean Air Act(CAA)section 111(b)and the 2024 Carbon Pollution Standards(CPS).Alternative Proposal-Repeal of the CPS existing fossil fuel-fired E
4、GUs,repeal of the CPS Phase II CCS requirements.Comments were due August 7,2025.Final Rule in December 2025.#PublicPower www.PublicPower.org 4Stakeholder Comments on GHG Repeal Arguments in Support of the CPS Repeal:Coalition of 28 States(led by West Virginia):They argue that electric generation uni
5、t(EGU)GHG emissions do not significantly contribute to air pollution endangering public health.They support the repeal of the CPSs BSER determinations regarding CCS and natural gas co-firing emission guideline requirements.North Dakota:They support the CPS repeal and request that EPA finalize the Pr
6、imary Proposal.They also emphasize the need to move quickly to finalize the Alternative Proposal.Texas Commission on Environmental Quality(TCEQ)and Railroad Commission of Texas(RRC):They argue that GHG emissions from EGU source category do not significantly contribute to air pollution that endangers