CFR › Title 46 › Part 154 › §154.41146 CFR §154.411Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkFor the calculations required under § 154.406(a)(4), the following determined loads must be specially approved by the Commandant (CG-ENG):(a)Transient thermal loads for the cooling down periods of cargo tanks for design temperatures lower than −55 °C (−67 °F).(b)Stationary thermal loads for cargo tanks for design temperatures lower than −55 °C (−67 °F) that cause high thermal stress.