32 C.F.R. § 707.8 Special operations lights.
Title 32 - National Defense
Naval vessels may dispay, as a means of coordinating certain special operations, a revolving beam colored red, green, or amber, located on either yard arm or the mast platform from where it can best be seen all around the horizon.
Title 32: National Defense
PART 707—SPECIAL RULES WITH RESPECT TO ADDITIONAL STATION AND SIGNAL LIGHTS
§ 707.8 Special operations lights.
