What does CYO stand for?

Air Transport, Inc. - FAA designator (FAAC)

Catholic Youth Organization

Circleville, OH - Location identifier - FAA (FAAL)

Committee for Youth Organizations (SAUO)

Council on Youth Opportunity - Disbanded 1971; functions taken over by Domestic Council and OMB

Cuyonon - Language code (ETLW)

C. Y. M. Yacht Builders Corp., North Palm Beach, FL - Manufacturer code for watercraft hull identification number (USCG)

Cyrano Resources, Inc. - Vancouver Stock Exchange symbol