| 100% | EPA | 3 | Organization that promotes clean air: Abbr. |
| 74% | ADA | 3 | Dentists' organization that promotes clean and healthy smiles: Abbr. |
| 70% | EPA | 3 | Organization that enforces the Clean Air Act: Abbr. |
| 62% | ADA | 3 | Organization that promotes oral health: Abbr. |
| 62% | ADA | 3 | Organization that promotes oral hygiene: Abbr. |
| 62% | WTO | 3 | Organization that promotes free trade: Abbr. |
| 61% | ADA | 3 | Organization that promotes flossing: Abbr. |
| 61% | ADA | 3 | Organization that promotes good oral health: Abbr. |
| 60% | ADA | 3 | Organization that promotes healthy teeth and gums: Abbr. |
| 60% | EPA | 3 | Organization concerned with clean air: Abbr. |
| 60% | FAA | 3 | Organization that manages air traffic: Abbr. |
| 60% | TSA | 3 | Organization that screens air travelers: Abbr. |
| 59% | ADA | 3 | Organization that promotes flossing and good oral hygiene: Abbr. |
| 59% | EPA | 3 | Clean Air Act organization: Abbr. |
| 59% | EPA | 3 | Clean air, green organization: Abbr. |
| 57% | ADA | 3 | Professional organization that promotes oral health: Abbr. |
| 57% | EPA | 3 | Organization that enforces the Clean Water Act: Abbr. |
| 56% | EPA | 3 | Organization that monitors air quality and drinking water: Abbr. |
| 56% | EPA | 3 | Organization that cares about air quality: Abbr. |
| 55% | EPA | 3 | Organization for clean air: Abbr. |
| 55% | EPA | 3 | Organization concerned with clean air and water: Abbr. |
| 53% | EPA | 3 | Federal organization that runs the National Clean Diesel Campaign: Abbr. |
| 50% | YMCA | 4 | Worldwide youth organization that promotes developing a healthy body, mind and spirit which is headquartered in Geneva, Switzerland: Abbr. |
| 50% | EPA | 3 | "Clean Air Act" organization: Abbr. |
| 48% | EPA | 3 | Organization responsible for the clean air act: Abbr. |
| 47% | EPA | 3 | Group that enforces the Clean Air Act: Abbr. |
| 46% | EPA | 3 | Agency concerned with clean air: Abbr. |
| 46% | EPA | 3 | Group concerned with clean air: Abbr. |
| 46% | EPA | 3 | Clean air watchdog: Abbr. |
| 46% | EPA | 3 | Clean air agency: Abbr. |