An individual engaged in the practice of providing radiation protection. He is the representative appointed by the licensee for liaison with the Nuclear Regulatory Commission and with "agreement states" radiation control branches. (RP 5A5)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}