Number of states with preemption penalties in clean indoor air ratings by item, 1993-1999
| Item | 1993 | 1994 | 1995 | 1996 | 1997 | 1998 | 1999 | Change 1993-1999 | Δ 1993-1999 (%) |
|---|---|---|---|---|---|---|---|---|---|
| 1. Government worksites | 8 | 11 | 11 | 12 | 12 | 12 | 12 | 4 | 50.00 |
| 2. Private worksites | 5 | 8 | 8 | 8 | 8 | 8 | 8 | 3 | 60.00 |
| 3. Schools | 7 | 11 | 13 | 14 | 14 | 14 | 14 | 7 | 100.00 |
| 4. Childcare facilities | 4 | 8 | 10 | 11 | 11 | 11 | 11 | 7 | 175.00 |
| 5. Restaurants | 8 | 11 | 11 | 11 | 11 | 11 | 11 | 3 | 37.50 |
| 6. Retail | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 3 | 50.00 |
| 7. Recreation/cultural facilities | 6 | 10 | 12 | 13 | 13 | 13 | 13 | 7 | 117.00 |
| 8. Penalties | 9 | 13 | 15 | 16 | 16 | 16 | 16 | 7 | 77.78 |
| 9. Enforcement | 10 | 13 | 14 | 15 | 15 | 15 | 15 | 5 | 50.00 |
| Any item | 10 | 14 | 16 | 17 | 17 | 17 | 17 | 7 | 70.00 |