Vessels on federally controlled waters must be equipped with visual distress signals that are U.S. Coast Guard–approved, in serviceable condition, and readily accessible.
All vessels, regardless of length or type, are required to carry night signals when operating between sunset and sunrise. Most vessels must carry day signals also; exceptions to the requirement for day signals are:
If pyrotechnic VDSs are used, a minimum of three must be carried in the vessel.

Orange Smoke
Day Signal
|

Red Meteor
Day and Night Signal
|

Red Flare
Day and Night Signal |

Electric Light
Night Signal
|

Orange Flag
Day Signal
|

Arm Signal
Although this signal does not meet VDS equipment requirements, wave your arms to summon help if you do not have other distress signals on board. |