View all text of Subpart 32.20 [§ 32.20-1 - § 32.20-20]
§ 32.20-5 - Pressure vacuum relief valves—TB/ALL.
The pressure vacuum relief valve shall be of a type and size approved by the Commandant for the purpose intended. For specifications and procedures re approval, see subpart 162.017 of subchapter Q (Specifications) of this chapter.