January 30, 2024 U.S. Environmental Protection Agency Region 7 11201 Renner Blvd. Lenexa, KS 66219 Electronic Filing via Regulations.gov Re: Comments on Proposed Air Plan Disapproval; Kansas; Regional Haze [EPA Docket No. EPA–R07–OAR–2023–0582] The National Parks Conservation Association (NPCA), Sierra Club, and the Coalition to Protect America’s National Parks (collectively, the Conservation Groups) submit