Clean air org.
The crossword clue "Clean air org." is answered by EPA, a 3-letter entry. Used 187 times across 31 distinct years; most recently in 2026. It appears in 21 publications in the xd corpus. Every figure on this page comes from the pilot data itself.
The answer
EPA
3 letters. See every clue for this answer on the EPA answer page.
Used 187 times across 31 distinct years; most recently in 2026. It appears in 21 publications in the xd corpus. Frequency and last-seen figures come from the xd crossword corpus only.
Other answers for this clue
The same clue has also been answered these ways in the xd corpus. Answers inside this pilot link to their own answer page.
- FCC (1 uses in xd)
Other clues for EPA
Every other clue in this pilot answered by EPA, most used first.
- Ecol. watchdog - used 114 times, most recently in 2026
- Clean Air Act org. - used 80 times, most recently in 2026
Related clues
Pilot clues of the same answer length that share a word with this clue, or match its answer pattern when no word is shared. Most used first.
- Teachers' org. - NEA, used 369 times
- Lawyers' org. - ABA, used 334 times
- School org. - PTA, used 293 times
- Draft org. - SSS, used 218 times
- Doctors' org. - AMA, used 172 times
- Spy org. - CIA, used 168 times
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