Related Clues:

• Grp. overseeing toxic cleanups
• Org. founded in 1970
• Air quality tester: Abbr.
• Automobile sticker fig.
• Fed. watchdog
• Emissions tester: Abbr.
• Govt. watchdog
• Abbr. in car ads
• Ecol. watchdog
• Grp. that rates
• Smog-battling org.
• Pollution stds. setter
• Car ad abbr.
• Mileage testing grp.
• Kind of rating