For safe vessel traffic, all vessels in the port of Riga shall constantly maintain radio communication on VHF Channel 9 or 16.
Vessels in the water area of the Port of Riga shall comply with the 1972 Convention on the International Regulations for Preventing Collisions at Sea (COLREG).
All vessels shall comply with safe speed limit depending on navigation conditions. Every vessel with length exceeding 24 meters shall comply with maximum speed - maximum speed on the main shipping fairway within the River Daugava shall not exceed 8 knots, and within Mīlgrāvis and Sarkandaugava channels shall not exceed 6 knots. Overtaking of another vessel and bidirectional movement within Mīlgrāvis and Sarkandaugava channels shall be prohibited. Vessels shall reduce their speed to the minimum maneuvering speed when passing berths with ships, floating cranes, dredgers and any underwater work sites.
Vessel traffic in the port may be restricted if the wind speed exceeds 14 m/s or the visibility is less than four times the maximum length of the vessel expressed in meters (LOA), as well as in other cases if determined by the Harbour Master.
Tug services in the port are provided by commercial companies that have entered the contracts with the Freeport of Riga Authority on conducting commercial activities in the port. The number of tugs required for the vessel shall be determined by the Master of the vessel upon coordination with the pilot. The ship's agent shall apply for the tug service addressing the tug service providing merchant.
Mooring services at berths are provided by the berth owner or operator.