---
kind: "section"
citation: "46 C.F.R. § 58.20-5"
title: "46"
number: "58.20-5"
heading: "Design."
url: "https://uscodex.org/cfr/46/58.20-5"
---

# §58.20-5. Design.

- (a) Refrigeration machinery may be accepted for installation provided the design, material, and fabrication comply with the applicable requirements of the ABS Marine Vessel Rules (incorporated by reference, see [§ 58.03-1](/cfr/46/58.03-1.md)). The minimum pressures for design of all components must be those listed for piping in Table 501.2.4 of ASME B31.5 (incorporated by reference; see [§ 58.03-1](/cfr/46/58.03-1.md)). In no case may pressure components be designed for a pressure less than that for which the safety devices of the system are set. Pressure vessels must be designed in accordance with [part 54](/cfr/46/part54.md) of this subchapter.
- (b) For refrigeration systems other than those for reliquefaction of cargo, only those refrigerants under [§ 147.90](/cfr/46/147.90.md) of this chapter are allowed.

## Notes

### Source

Source: USCG-2020-0634, 89 FR 50173, June 12, 2024, unless otherwise noted.

### Authority

Authority: 43 U.S.C. 1333; 46 U.S.C. 3306, 3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; DHS Delegation No. 00170.1, Revision No. 01.4.

### Source

Source: CGFR 68-82, 33 FR 18878, Dec. 18, 1968, unless otherwise noted.