The Navigable Waters Protection Program (NWPP) is responsible for the protection of the public right to navigation and the protection of the environment through the administration of the Navigable Waters Protection Act (NWPA). Specifically, the NWPP:

• approves any works built or placed in, on, over, under, through or across navigable water in Canada prior to construction of the
  work(s);
• removes obstructions to navigation including unauthorized works or other obstructions such as sunken or wrecked vessels;
• regulates the provision and maintenance of lights, markers, etc. required for safe navigation during and/or on completion of the construction of certain works;
• acts as the Receiver of Wreck by applying the Canada Shipping Act 2001, Part 7.

TP 14595 - The Navigable Waters Protection Act: Docks and Boathouses - Brochure