Related Clues:
- Emissions control grp.
- Waste watchers: Abbr.
- Org. concerned with emissions
- M.P.G. determiners
- Grp. with standards
- Org. that banned DDT
- Clean air grp.
- Eco-friendly feds
- Grp. monitoring emissions
- Car-sticker stat.
- Eco-friendly org.
- Sticker datum, for short
- Air monitor: Abbr.
- Pollution control grp.
- Fuel economy letters