46 CFR § 154.620 - Design temperature below −55 °C (−67 °F) and down to −165 °C (−265 °F).
---
identifier: "/us/cfr/t46/s154.620"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 154.620 - Design temperature below −55 °C (−67 °F) and down to −165 °C (−265 °F)."
title_number: 46
title_name: "Shipping"
section_number: "154.620"
section_name: "Design temperature below −55 °C (−67 °F) and down to −165 °C (−265 °F)."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "O"
subchapter_name: "CERTAIN BULK DANGEROUS CARGOES"
part_number: "154"
part_name: "SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 3703, 9101; Department of Homeland Security Delegation No. 0170.1."
regulatory_source: "CGD 74-289, 44 FR 26009, May 3, 1979, unless otherwise noted."
cfr_part: "154"
---
# 154.620 Design temperature below −55 °C (−67 °F) and down to −165 °C (−265 °F).
Plates, forgings and forged or rolled fittings, and rolled, forged or extruded bars and shapes for cargo tanks, secondary barriers, and process pressure vessels for a design temperature below −55 °C (−67 °F) and down to −165 °C (−265 °F) must:
(a) Meet § 54.25-10(b)(2), § 54.25-15, or § 54.25-20 of this chapter; or
(b) Be of an aluminum alloy that is specially approved by the Commandant (CG-ENG).
[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR 4782, Feb. 3, 1983]