(a) Each vessel of 10,000 gross tons or more must have, in addition to the radar system under § 164.35(a), a second marine radar system that operates independently of the first.
Note:
Independent operation means two completely separate systems, from separate branch power supply circuits or distribution panels to antennas, so that failure of any component of one system will not render the other system inoperative.
(b) On each tanker of 10,000 gross tons or more that is subject to 46 U.S.C. 3708,the; and each radar must have true north features consisting of a display that is stabilized in azimuth.
(Titles I and II, 86 Stat. 426, 427 (46 U.S.C. 391(a), 70004; 49 CFR 1.46(n)(4))
[CGD 77-016, 43 FR 32112, July 24, 1978, as amended by CGD 79-033, 44 FR 26741, May 7, 1979; CGD 79-033, 47 FR 34389, Aug. 9, 1982; USCG-1998-3799, 63 FR 35532, June 30, 1998; USCG-2020-0304, 85 FR 58280, Sept. 18, 2020]