Provides additional text explaining rationale and may helpful in understanding the regulation.
You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Preamble to 40 CFR Part 280 (PDF)(207 pp, 2 MB)
- Preamble to 40 CFR Part 281 (PDF)(59 pp, 447 K)
- Preamble to 40 CFR Parts 280 and 281 Preamble (PDF)(104 pp, 719 K)