As of Jan 2013: . The agency reportedly has until Feb. 2014 to implement new standards, which are expected to be drafted within the year. I have traveled internationally and domestically this year with a tenor and hard case which fits nicely in all the overheads of anything 737 (can't stand those cattle cars!) or bigger. The only comments I ever got from flight personnel was "Are you going to play for us". I wonder if I can pull of getting the entire plane to sing....that should be one hell of a YouTube video... or one hell of a booking photo in jail. Wonder if they would let you hold your uke for the jail photo?