Related Clues:

• M.P.G. determiners
• Grp. with standards
• Org. that banned DDT
• Clean air grp.
• Eco-friendly feds
• Grp. monitoring emissions
• Eco-friendly org.
• Air monitor: Abbr.
• Pollution control grp.
• Anti-pollution org.
• Watchdog feds
• Emissions-regulating org.
• Clean air org.
• Assessors of m.p.g.
• Smog-fighting grp.