46 C.F.R. § 196.37-9 Carbon dioxide alarm.
Title 46 - Shipping
(a) All carbon dioxide alarms shall be conspicuously identified: “WHEN ALARM SOUNDS—VACATE AT ONCE. CARBON DIOXIDE BEING RELEASED.”
Title 46: Shipping
PART 196—OPERATIONS
Subpart 196.37—Markings for Fire and Emergency Equipment, etc.
§ 196.37-9 Carbon dioxide alarm.

