Related Clues:

• Smog-battling org.
• Pollution stds. setter
• Car ad abbr.
• Int. disclosure
• Mileage testing grp.
• Kind of rating
• Emissions control grp.
• Waste watchers: Abbr.
• Secretaries Day mo.
• Org. concerned with emissions
• M.P.G. determiners
• Grp. with standards
• Follower of Mar.
• Org. that banned DDT
• Busy mo. for a C.P.A.