46 C.F.R. § 54.01-17 Pressure vessel for human occupancy (PVHO).
Title 46 - Shipping
Pressure vessels for human occupancy (PVHO's) must meet the requirements of subpart B (Commercial Diving Operations) of part 197 of this chapter. [CGD 76–009, 43 FR 53683, Nov. 16, 1978]
Title 46: Shipping
PART 54—PRESSURE VESSELS
Subpart 54.01—General Requirements
§ 54.01-17 Pressure vessel for human occupancy (PVHO).