Which Act requires that applications for certain constructions be submitted to a federal authority?

The Navigable Waters Protection Act is the correct choice because it specifically mandates that applications for construction projects that could affect navigable waters must be submitted to a federal authority. The Act aims to protect the public's right to navigate waterways, ensuring that any construction does not impede navigation or harm the environment related to navigable waters. This includes projects such as bridges, dams, and any structures that might alter the flow of rivers or lakes.

The Canadian Environmental Assessment Act, while also focused on assessing environmental impacts of certain projects, is broader in scope and may apply to more than just navigable waters. The Agricultural Operation Practices Act primarily deals with local agricultural practices and does not pertain to construction in relation to waterways. The Farm Debt Mediation Act focuses on financial issues related to farming operations and does not involve construction regulations. Thus, the Navigable Waters Protection Act specifically addresses the requirement for federal authority involvement regarding applications for constructions affecting navigable waters.