Storage vessel
Storage vessel means a tank or other vessel that is used to store liquids that contain one or more organic HAP. Storage vessels do not include:
(i) Vessels permanently attached to motor vehicles such as trucks, railcars, barges, or ships;
(ii) Except for storage vessels in chloroprene service, vessels with capacities smaller than 38 cubic meters;
(iii) Except for storage vessels in chloroprene service, vessels and equipment storing and/or handling material that contains no organic HAP, or organic HAP as impurities only;
(iv) Surge control vessels and bottoms receivers; and
(v) Wastewater storage tanks.
Source
40 CFR § 63.482
Scoping language
The following terms used in this subpart shall have the meaning given them in 63.2, 63.101, or the Act, as specified after each term: