| Acronym | Meaning |
| DHSS | UK Department Of Health And Social Security |
| REME | Royal Electrical And Mechanical Engineers |
| CAC | California Association Of Criminalists - Chronic Asymptomatic [Disease] Carrier |
| ROW | Right Of Way - Rest Of The World |
| LW | Lawrencium (obsolete 1963) |
| STDM | Statistical Time Division Multiplexing |
| PNG | Papua New Guinea (ISO 3166 Trigram) -Portable Network Graphic |
| USD(A&T) | (U.S.) Under-Secretary Of Defense (Acquisition And Technology) |
| ACO | Airspace Control Order |
| QA | Qatar (FIPS 10-4 Country Code; ISO 3166 Digram) |