FORT WORTH, Texas (CBS SF)–The Federal Aviation Administration (FAA) authorized American Airlines and U.S. Airways to operate as a single carrier on Wednesday.

The decision means that American Airlines can combine work forces, websites and reservations systems starting this fall, but passengers won’t notice much difference right away.

Eventually the U.S. Airways name will disappear and its planes will be repainted in American’s colors and logo. The company has already combined the two frequent-flier programs.

The company, formed by a December 2013 merger, is marking the FAA decision with a celebration at its headquarters in Fort Worth.

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