46 CFR § 167.40-20
Deep-sea sounding apparatus
April 15, 2021
Nautical school ships shall be equipped with an efficient or electronic deep-sea sounding apparatus. The electronic deep-sea sounding apparatus required shall be installed, kept in working order, and ready for immediate use.
[CGFR 58-10, 23 FR 4686, June 26, 1958, as amended by CGD 75-074, 42 FR 5964, Jan. 31, 1977; CGD 95-027, 61 FR 26010, May 23, 1996]