49 C.F.R. § 238.423
Fuel tanks.
Cite as 49 C.F.R. § 238.423 (2026)
(a)
External fuel tanks.
Each type of external fuel tank must be approved by FRA's Associate Administrator for Safety upon a showing that the fuel tank provides a level of safety at least equivalent to a fuel tank that complies with the external fuel tank requirements in § 238.223(a).
(b)
Internal fuel tanks.
Internal fuel tanks shall comply with the requirements specified in § 238.223(b).
- Cross-references to the CFR
- 238.223