What is an SCC code?
The SCC code is often confused with the SIC code. The SCC code is an 8-digit number that identifies the type of process or activity occurring at the specific emission unit. The SCC code is used in Forms INV-3 and INV-4. The SCC number corresponds to the Description of Process. The SCC number can be obtained from EPA documents that provide emission factors, such as AP-42 and FIRE. If an SCC number cannot be identified for the process in question, enter 99999999.