46 CFR § 197.318
Gages and timekeeping devices
April 15, 2021
(a) A gage indicating diver depth must be at each dive location for surface-supplied dives.
(b) A timekeeping device must be at each dive location.
(a) A gage indicating diver depth must be at each dive location for surface-supplied dives.
(b) A timekeeping device must be at each dive location.