EPA Regulatory Authority Act of 2022 This bill provides that in identifying the best system of emission reduction for purposes of a standard performance under the Clean Air Act, the Environmental Protection Agency may include measures that apply beyond an individual stationary source or category of stationary sources. Additionally, the bill provides that each determination in the Clean Power Plan (i.e., the final rule titled Carbon Pollution Emission Guidelines for Existing Stationary Sources: Electric Utility Generating Units published in the Federal Register on October 23, 2015) with respect to a best system of emission reduction is deemed as authorized.