WASHINGTON, Feb. 22 -- The U.S. Department of Transportation's Federal Aviation Administration has issued a notice, published in the Federal Register on Feb. 22, 2023, entitled "Notice of Release From Federal Grant Assurance Obligations and Land Exchange, Tucson International Airport, Tucson, Pima County, Arizona." The notice was issued by Brian Q. Armstrong, Manager, Safety and Standards Branch, Airports Division, Western-Pacific Region. DATES: Comments must be received on or before March 24,  more