The Oklahoma Department of Environmental Quality (ODEQ) has submitted updated regulations for receiving delegation and approval of its program for the implementation and enforcement of certain National Emission Standards for Hazardous Air Pollutants (NESHAP) for all sources (both part 70 and non-part 70 sources), as provided for under previously approved delegation mechanisms. The updated state regulations incorporate by reference certain NESHAP promulgated by the Environmental Protection Agency (EPA) at parts 61 and 63, as they existed through June 30, 2019.

Because the Environmental Protection Agency (EPA) received public comment, which we intend to address, we are withdrawing the direct final rule for Delegation of New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants for the States of Arizona and California published on March 31, 2022. The EPA will take a final action on the proposed action in a separate subsequent final rulemaking.

The Environmental Protection Agency (EPA or the ``Agency'') is proposing full approval of revisions to the South Dakota operating permit program for stationary sources under the Clean Air Act (CAA), title V (the ``title V program'') and a Clean Air Act (CAA) section 111(d)/129 negative declaration for incinerators subject to the Hospital/Medical/Infectious Waste Incinerators (HMIWI) Emissions Guidelines. EPA is proposing this action in accordance with the CAA.

The Environmental Protection Agency (EPA) is proposing a rule under the Toxic Substances Control Act (TSCA) to address the unreasonable risk of injury to health it has identified for conditions of use of chrysotile asbestos following completion of the TSCA Risk Evaluation for Asbestos, Part 1: Chrysotile Asbestos. TSCA requires that EPA address the unreasonable risks of injury to health and environment by rule and to apply requirements to the extent necessary so that chrysotile asbestos no longer presents such risks.