WASHINGTON, Feb. 7 -- The U.S. Environmental Protection Agency has issued a notice, published in the Federal Register on Feb. 7, 2023, entitled "Air Plan Approval; NC; Transportation Conformity." The notice was posted by Regional Administrator Daniel Blackman (Region 4). DATES: Written comments must be received on or before March 9, 2023. FOR FURTHER INFORMATION CONTACT: Kelly Sheckler, Air Regulatory Management Section, Air Planning and Implementation Branch, Air and Radiation Division, U.S.  more