CFR > Title 46 - Shipping > CHAPTER I—COAST GUARD, DEPARTMENT OF HOMELAND SECURITY > SUBCHAPTER K—SMALL PASSENGER VESSELS CARRYING MORE THAN 150 PASSENGERS OR WITH OVERNIGHT ACCOMMODATIONS FOR MORE THAN 49 PASSENGERS (parts 114 to 123) > PART 121—VESSEL CONTROL AND MISCELLANEOUS SYSTEMS AND EQUIPMENT > SUBPART D—Navigation Equipment (§121.402 to §121.420) > 121.404—Radars.

121.404—Radars.

(a) Except as allowed by paragraph (b) of this section, all self-propelled vessels 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.
(b) The following vessels are not required to carry a radar:
(1) A ferry that operates on a rivers route within one mile of land; and
(2) A vessel operated on a short restricted route, when the cognizant OCMI has determined that a radar is not necessary due to the vessel's route and local weather conditions.
(c) The radar and its installation must be suitable for the intended speed and route of the vessel.