What does BYA stand for?

Babylonian Talmudic Aramaic - Language code (ETLW)

Bay Ann Resources, Inc. - Vancouver Stock Exchange symbol

Bay Apartment Communities - NYSE symbol (SAG)

Bay Yacht Agency, Annapolis, MD - Manufacturer code for watercraft hull identification number (USCG)

Boundary, AK - Location identifier - FAA (FAAL)

Byrd Station, Antarctica

Younkin Airshows - Air show performer (ASPC)