| Answer | Crossword Clue |
|---|---|
| EPA | Pollution-investigating org. |
| NTSB | Accident-investigating org. |
| ATF | Arson-investigating org. |
| NTSB | Crash-investigating org. |
| ATF | Fed. arson-investigating org. |
| EPA | Pollution watchdog org. |
| EPA | Air-pollution org. |
| EPA | Pollution standards org. |
| EPA | Org. against pollution |
| EPA | Pollution control org. |
| EPA | Pollution monitoring org. |
| EPA | Pollution-fighting org. |
| EPA | Pollution-control org. |
| EPA | Anti-pollution org. |
| EPA | Pollution-monitoring org. |
| EPA | Pollution-policing org. |
| EPA | Org. concerned with pollution |
| FAA | Org. concerned with noise pollution |
| EPA | Org. with a Pollution Prevention Grant |
