40 CFR Appendix B to Part 63 - Appendix B to Part 63—Sources Defined for Early Reduction Provisions

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]