46 C.F.R. § 167.40-40 Radar.
Title 46 - Shipping
All mechanically propelled vessels of 1,600 gross tons and over in ocean or coastwise service must be fitted with a marine radar system for surface navigation. Facilities for plotting radar readings must be provided on the bridge. [CGFR 75–074, 42 FR 5964, Jan. 31, 1977]
Title 46: Shipping
PART 167—PUBLIC NAUTICAL SCHOOL SHIPS
Subpart 167.40—Certain Equipment Requirements
§ 167.40-40 Radar.

