40 CFR Part 63, Appendix B
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
| Source | Location of definition |
|---|---|
| 1. Organic Process Equipment in Volatile Hazardous Air Pollutant Service at Chemical Plants and Other Designated Facilities | 56 FR 9315, March 6, 1991, Announcement of Negotiated Rulemaking |
a. All valves in gas or light liquid service within a process unit |
b. All pumps in light liquid service within a process unit |
c. All connectors in gas or light liquid service within a process unit |
d. Each compressor |
e. Each product accumulator vessel |
f. Each agitator |
g. Each pressure relief device |
h. Each open-ended valve or line |
i. Each sampling connection system |
j. Each instrumentation system |
k. Each pump, valve, or connector in heavy liquid service |
l. Each closed vent system and control device |
[57 FR 62002, Dec. 29, 1992]