| 100% | IRS | 3 | Org. supported by the 16th Amendment |
| 78% | IRS | 3 | Org. authorized by the 16th Amendment |
| 48% | IRS | 3 | 16th Amendment org. |
| 46% | NRA | 3 | Org. supported by hunters |
| 46% | EVOLUTION | 9 | Theory supported by the idea of natural selection |
| 45% | USN | 3 | ''Forged by the Sea'' org. |
| 44% | JURYOFYOURPEERS | 15 | Right guaranteed by the Sixth Amendment |
| 43% | NRA | 3 | Org. defending the Second Amendment |
| 42% | ATP | 3 | Sports org. supported by 66-Down |
| 42% | IRA | 3 | Org. that supported the Good Friday Agreement |
| 41% | AEC | 3 | Org. replaced by the N.R.C. |
| 41% | FDIC | 4 | Org. created by the 1933 Banking Act |
| 41% | NSC | 3 | Org. chaired by the U.S. President |
| 40% | NCAA | 4 | Org. impacted by the Fair Pay to Play Act |
| 40% | NET | 3 | Broadcast network from 1962 to 1970, supported by the Ford Foundation and now known as PBS |
| 39% | MALALA | 6 | __ Fund: org. supporting girls' education founded by a 2014 Nobelist |
| 39% | AMA | 3 | Professional org. that supported the passage of Obamacare |
| 39% | IRS | 3 | Tax org. affected by the shutdown |
| 38% | CIA | 3 | Org. created by the National Security Act on July 26, 1947 |
| 38% | BRASSIERE | 9 | Foundation garment worn by women to support the breasts |
| 38% | BAIL | 4 | It's limited by the Eighth Amendment |
| 38% | ROTC | 4 | Campus org. protested by the 26-Across |
| 38% | USPS | 4 | Org. suggested by the starts of 17-, 31-, 41- and 62-Across |
| 37% | EEC | 3 | Trade org. created by the Treaty of Rome |
| 37% | PEGLEG | 6 | Wooden support below the waist used by pirates |
| 36% | TOWEROFBABEL | 12 | The —, Biblical structure; subject of paintings by 16th-century artist Pieter Bruegel the Elder |
| 36% | VOTING | 6 | Exercising the right granted by the Nineteenth Amendment |
| 35% | NSC | 3 | U.S. org. chaired by the president |
| 35% | NRA | 3 | Second Amendment-supporting org. |
| 35% | NRA | 3 | Group that supports the 2nd Amendment: Abbr. |