Clean indoor air summary scores* by state, 1993 through 1999 (target score = 36 points)
| State | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | Δ 1993-1999 |
|---|---|---|---|---|---|---|---|---|
| *Scores with preemption penalties are shown in parentheses. | ||||||||
| Alabama | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Alaska | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 0 |
| Arizona | 6 | 6 | 6 | 6 | 6 | 6 | 10 | 4 |
| Arkansas | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 0 |
| California | 13 | 18 (2) | 18 (2) | 18 (2) | 18 (2) | 18 (2) | 18 (2) | 5 |
| Colorado | 3 | 4 | 4 | 4 | 4 | 4 | 4 | 1 |
| Connecticut | 8 (2) | 8 (2) | 8 (2) | 8 (2) | 8 (2) | 8 (2) | 8 (2) | 0 |
| Delaware | 0 | 17 (5) | 17 (5) | 17 (5) | 17 (5) | 17 (5) | 17 (5) | 17 |
| District of Columbia | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 0 |
| Florida | 20 (7) | 20 (7) | 20 (7) | 20 (7) | 20 (7) | 20 (7) | 20 (7) | 0 |
| Georgia | 2 | 6 | 6 | 6 | 6 | 6 | 6 | 4 |
| Hawaii | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 0 |
| Idaho | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 0 |
| Illinois | 10 (2) | 10 (2) | 13 (5) | 13 (5) | 13 (5) | 13 (5) | 13 (5) | 3 |
| Indiana | 5 | 5 | 5 | 5 | 5 | 9 | 12 | 7 |
| Iowa | 10 (0) | 10 (0) | 10 (0) | 10 (0) | 10 (0) | 10 (0) | 10 (0) | 0 |
| Kansas | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 1 |
| Kentucky | 3 | 3 (0) | 3 (0) | 3 (0) | 3 (0) | 3 (0) | 3 (0) | 0 |
| Louisiana | 11 (2) | 16 (7) | 16 (7) | 16 (7) | 16 (7) | 16 (7) | 16 (7) | 5 |
| Maine | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 0 |
| Maryland | 3 | 3 | 23 | 23 | 23 | 23 | 23 | 20 |
| Massachusetts | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 0 |
| Michigan | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 0 |
| Minnesota | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 0 |
| Mississippi | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Missouri | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 0 |
| Montana | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 0 |
| Nebraska | 9 | 9 | 9 | 9 | 9 | 9 | 11 | 2 |
| Nevada | 13 (4) | 13 (4) | 13 (4) | 13 (4) | 13 (4) | 13 (4) | 13 (4) | 0 |
| New Hampshire | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 0 |
| New Jersey | 11 | 11 | 11 | 11 | 11 | 14 | 14 | 3 |
| New Mexico | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 0 |
| New York | 16 | 19 | 19 | 19 | 19 | 19 | 19 | 3 |
| North Carolina | 1 (0) | 1 (0) | 1 (0) | 1 (0) | 1 (0) | 1 (0) | 1 (0) | 0 |
| North Dakota | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 0 |
| Ohio | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 3 |
| Oklahoma | 6 (0) | 10 (1) | 10 (1) | 10 (1) | 10 (1) | 10 (1) | 10 (1) | 4 |
| Oregon | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 0 |
| Pennsylvania | 8 (0) | 8 (0) | 8 (0) | 8 (0) | 8 (0) | 8 (0) | 8 (0) | 0 |
| Rhode Island | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 0 |
| South Carolina | 9 | 11 | 11 | 11 (3) | 11 (3) | 11 (3) | 11 (3) | 2 |
| South Dakota | 4 | 5 | 5 (0) | 5 (0) | 5 (0) | 5 (0) | 5 (0) | 1 |
| Tennessee | 0 | 0 | 6 (0) | 6 (0) | 6 (0) | 6 (0) | 6 (0) | 6 |
| Texas | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 0 |
| Utah | 17 | 31 (14) | 31 (14) | 31 (14) | 31 (14) | 31 (14) | 31 (14) | 14 |
| Vermont | 9 | 9 | 13 | 13 | 13 | 13 | 13 | 4 |
| Virginia | 9 (0) | 13 (2) | 13 (2) | 13 (2) | 13 (2) | 13 (2) | 13 (2) | 4 |
| Washington | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 0 |
| West Virginia | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 0 |
| Wisconsin | 12 | 15 | 15 | 15 | 15 | 15 | 15 | 3 |
| Wyoming | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Mean | 8.71 | 10.02 | 10.67 | 10.67 | 10.67 | 10.80 | 10.98 | NA |
| Median | 9 | 10 | 11 | 11 | 11 | 11 | 11 | NA |