Who typically regulates navigation hazards in the waterways?

The correct answer is the Army Corps of Engineers because this federal agency is primarily responsible for the management of navigable waters in the United States. The Corps plays a key role in maintaining and regulating navigation channels, which involves the placement and removal of navigation aids and addressing hazards that could impede safe navigation. Their work includes ensuring that waterways are properly marked and maintained to facilitate the safe passage of vessels.

In contrast, while state governments and local municipalities may have some authority over certain aspects of waterways within their jurisdictions, they typically do not have the overarching regulatory power regarding navigation hazards that the Army Corps of Engineers possesses. The Coast Guard's primary focus is on maritime safety, security, and environmental protection rather than direct regulation of navigation hazards. While they do play a role in marking hazards and enforcing navigation rules, the Corps is the main agency responsible for the physical aspects of navigation in the waterways.