| Answer | Crossword Clue |
|---|---|
| EPA | Clean air group: Abbr. |
| EPA | Clean Air Act enforcer: Abbr. |
| EPA | Clean Air Act enforcers (abbr.) |
| NAA | Air group: Abbr. |
| NAA | National air group: Abbr. |
| SAC | Air defense group: Abbr. |
| TAC | Major air group: Abbr. |
| TAC | Gen. Weyland's air group: Abbr. |
| RNAS | British sea-air group: Abbr. |
| SAC | U.S. air group: Abbr. |
