| 100% | CIA | 3 | Information-gathering federal organization: Abbr. |
| 68% | NSA | 3 | Code-cracking federal organization: Abbr. |
| 68% | USDA | 4 | Food-approving federal organization: Abbr. |
| 68% | USDA | 4 | Federal organization concerning farmers: Abbr. |
| 68% | CIA | 3 | Federal organization with spies: Abbr. |
| 67% | EPA | 3 | Antipollution federal organization: Abbr. |
| 65% | EPA | 3 | Federal organization that hires ecologists: Abbr. |
| 65% | IRS | 3 | Federal organization that conducts audits: Abbr. |
| 65% | EPA | 3 | Federal organization concerned with pollution: Abbr. |
| 65% | DEA | 3 | Federal organization that fights cartels: Abbr. |
| 64% | EPA | 3 | Federal organization concerned with acid rain: Abbr. |
| 64% | EPA | 3 | Federal organization concerned with air quality: Abbr. |
| 64% | DEA | 3 | Federal organization with narcotics-sniffing dogs: Abbr. |
| 64% | EPA | 3 | Federal organization concerned with clean water: Abbr. |
| 64% | DEA | 3 | Federal organization that busts narcotics rings: Abbr. |
| 64% | EPA | 3 | Federal organization concerned with greenhouse gases: Abbr. |
| 64% | CIA | 3 | Federal organization that snoops and spies: Abbr. |
| 63% | EPA | 3 | Federal organization that administers the WaterSense program: Abbr. |
| 63% | EPA | 3 | Federal organization that publishes the "GoGreen!" newsletter: Abbr. |
| 61% | EPA | 3 | Federal organization that has an Acid Rain Program: Abbr. |
| 61% | GSA | 3 | Organization for federal properties: Abbr. |
| 61% | USDA | 4 | Federal food-inspecting organization: Abbr. |
| 61% | IRS | 3 | Federal audit-conducting organization: Abbr. |
| 61% | CIA | 3 | Federal espionage organization: Abbr. |
| 61% | EPA | 3 | Federal ecology organization: Abbr. |
| 61% | EPA | 3 | Federal antipollution organization: Abbr. |
| 60% | EPA | 3 | Federal organization that runs the National Clean Diesel Campaign: Abbr. |
| 60% | DEA | 3 | Federal organization that a 1-Across might work for: Abbr. |
| 56% | CIA | 3 | Organization that gathers foreign intelligence: Abbr. |
| 51% | GSA | 3 | Federal purchasing organization (abbr.) |