A trademark used for a movie rating indicating that admission will be granted only to persons of or over a certain age, usually 17, unless accompanied by a parent or guardian
Acronym for Radio Telephone Operator, the soldier who carries and operates a portable fileld radio 21C has released a Vietnam-era U S Army Radio Telephone Operator uniform set and a U S Modern R T O uniform set
- a voluntary organization of transmission owners, users and other entities interested in coordinating transmission planning, expansion, operation and use on a regional and inter-regional basis
Registered Training Organisation Any training organisation registered in accordance with the Australian Recognition Framework providing vocational education and training and/or assessment services Includes District Offices (DET), TAFE colleges/institutes, private commercial providers etc
Independent entities, established by FERC Order 2000 issued in December 1999, that will control and operate regional electric transmission grids free of any discriminatory practices