46 CFR § 34.20-25
Foam monitor capacity—T/ALL
April 15, 2021
The capacity of each foam monitor on ships that have a keel laying date on or after January 1, 1975, must be at least 3 liters per minute per square meter (.073 gallons per minute per square foot) of cargo area protected by that monitor.
[CGD 74-127, 41 FR 3846, Jan. 26, 1976]