Volatile organic compound
Volatile organic compound (VOC) means any organic compound that participates in atmospheric photochemical reactions or that is measured by EPA Test Methods 18, 24, or 25A in appendix A of part 60 or an alternative test method as defined in 63.2.
Source
40 CFR § 63.702
Scoping language
All terms used in this subpart that are not defined below have the meaning given to them in the Clean Air Act and in subpart A of this part.