33 C.F.R. § 85.5 Signals for purse seiners.
Title 33 - Navigation and Navigable Waters
Vessels engaged in fishing with purse seine gear may exhibit two yellow lights in a vertical line. These lights shall flash alternately every second and with equal light and occultation duration. These lights may be exhibited only when the vessel is hampered by its fishing gear.
Title 33: Navigation and Navigable Waters
PART 85—ANNEX II: ADDITIONAL SIGNALS FOR FISHING VESSELS FISHING IN CLOSE PROXIMITY
§ 85.5 Signals for purse seiners.
