CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER T—SMALL PASSENGER VESSELS (UNDER 100 GROSS TONS) (parts 175 to 186) > PART 184—VESSEL CONTROL AND MISCELLANEOUS SYSTEMS AND EQUIPMENT > SUBPART D—Navigation Equipment (§184.402 to §184.420) > 184.404—Radars.

184.404—Radars.

(a) A vessel must be fitted with a Federal Communications Commission (FCC) type accepted general marine radar system for surface navigation with a radar screen mounted at the primary operating station if:
(1) The vessel is self-propelled;
(2) The vessel has an oceans, coastwise, limited coastwise, or Great Lakes route; and
(3) The vessel carries more than 49 passengers.
(b) A ferry that carries more than 49 passengers on a rivers route not within one mile of land must be fitted with a FCC Type Accepted general marine radar system for surface navigation with a radar screen mounted at the primary operating station.
(c) The radar and its installation must be suitable for the intended speed and route of the vessel.
(d) A vessel operated on a short restricted route need not be fitted with a radar if the cognizant OCMI determines that a radar is not necessary due to the vessel's route and local weather conditions.