Dear Administrator Regan:
On May 26, 2023, the U.S. Chamber of Commerce (“Chamber”) requested a comment period extension of at least 60 days for the proposed rules entitled New Source Performance Standards for Greenhouse Gas Emissions from New, Modified, and Reconstructed Fossil FuelFired Electric Generating Units: Emission Guidelines for Greenhouse Gas Emissions from Existing Fossil Fuel-Fired Electric Generating Units; and Repeal of the Affordable Clean Energy Rule (or “Powerplant Rules”). 1 That publication commenced an abbreviated 60-day timeline for public comment to the Environmental Protection Agency (EPA) on the Powerplant Rules, which were announced only shortly before such Federal Register publication.
