Dredging office works under supervision of Maritime Safety and Environmental Protection Department. This office must comply with IMO and IHO rules and regulations. When necessary, hydrography office announce to dredging office to dredge designated area by Nosud Dredger. Nosud dredger – with the capacity of 3000 cubic meters – is a suction dredger and belongs to a dredging container company. This dredger is in charge of all dredging operations of Maritime Safety and Environmental Protection Department.