| U.S. General Accounting Office |
| Survey of State and Local Air Pollution Control Officials (GAO-04-337SP) |
| Q7. How are your agency's PSD rules adopted? |
| Rules are adopted by reference - revisions are self-implementing | Rules are adopted by reference - revisions require state or local rulemaking | Rules are adopted by the state or locality and are at least as stringent as EPA regulations | Rules are adopted by the state or locality and some provisions are more stringent than EPA regulations | No answer | Number of respondents |
| 4 | 6 | 16 | 11 | 8 | 45 |