Governmental Decree No. 1643 validating the Regulation on the procedure for navigational and hydrographic support in the waters of the Northern Sea Route, in the waters of seaports located on the coast of the Northern Sea Route, and on approaches to them.

This Regulation establishes the procedure for navigational and hydrographic support in the waters of the Northern Sea Route, in the waters of seaports located on the coast of the Northern Sea Route, and on approaches to them with a view of ensuring safety f navigation. Navigational and hydrographic support in the water area includes: (a) hydrographic survey of the water area to generate navigational information; (b) collection, preparation and communication to mariners of operational information on changes in the navigational situation and navigation regime in the water area; and (c) equipment of the water area with navigation equipment.