| Employee | 7 | January 1, 1987, to December 31, 1998. |
| 7.25 | January 1, 1999, to December 31, 1999. | |
| 7.4 | January 1, 2000, to December 31, 2000. | |
| 7 | After December 31, 2000. | |
| Congressional employee | 7.5 | January 1, 1987, to December 31, 1998. |
| 7.75 | January 1, 1999, to December 31, 1999. | |
| 7.9 | January 1, 2000, to December 31, 2000. | |
| 7.5 | After December 31, 2000. | |
| Member | 7.5 | January 1, 1987, to December 31, 1998. |
| 7.75 | January 1, 1999, to December 31, 1999. | |
| 7.9 | January 1, 2000, to December 31, 2000. | |
| 8 | January 1, 2001, to December 31, 2002. | |
| 7.5 | After December 31, 2002. | |
| Law enforcement officer, firefighter, member of the Capitol Police, member of the Supreme Court Police, or air traffic controller | 7.5 | |
| 7.75 | ||
| 7.9 | ||
| 7.5 | ||
| January 1, 1987, to December 31, 1998. | ||
| January 1, 1999, to December 31, 1999. | ||
| January 1, 2000, to December 31, 2000. | ||
| After December 31, 2000. | ||
| Nuclear materials courier | 7 | January 1, 1987, to October 16, 1998. |
| 7.5 | October 17, 1998, to December 31, 1998. | |
| 7.75 | January 1, 1999, to December 31, 1999. | |
| 7.9 | January 1, 2000, to December 31, 2000. | |
| 7.5 | After December 31, 2000. | |
| Customs and border protection officer | 7.5 | After June 29, 2008. |