Related Clues:

• Clean-air agcy
• Antagonistic org. in 'The Simpsons Movie'
• Abbr. on a car sticker
• Org. with the Office of Solid Waste and Emergency Response
• Ecology agcy
• Energy Star program org
• Fed. conservation org
• Mileage rating org
• Org. concerned with greenhouse gas
• Org. that fines polluters
• "Wrestlemania" org., once
• Org. that monitors oil spills
• energystar.gov grp
• MPG-rating grp
• Pollution-control org