Equipment means , for the purposes of the provisions in 63.1410, each pump, compressor, agitator, pressure relief device, sampling connection system, open-ended valve or line, valve, connector, and instrumentation system in organic HAP service; and any control devices or systems required by 63.1410. For purposes of this subpart, surge control vessels and bottom receivers are not equipment for purposes of regulating equipment leak emissions. Surge control vessels and bottoms receivers are regulated as non-reactor batch process vents for the purposes of this subpart.
40 CFR § 63.1402
The following terms used in this subpart shall have the meaning given them in 63.2, 63.101, 63.111, and 63.161 as specified after each term: