46 C.F.R. § 162.017-4 Inspections and testing.
Title 46 - Shipping
Pressure-vacuum relief valves may be inspected and tested at the plant of the manufacturer. An inspector may conduct such tests and examinations as may be necessary to determine compliance with this specification. [56 FR 35827, July 29, 1991]
Title 46: Shipping
PART 162—ENGINEERING EQUIPMENT
Subpart 162.017—Valves, Pressure-Vacuum Relief, for Tank Vessels
§ 162.017-4 Inspections and testing.

