In 1971, Congress passed the Federal Boat Safety Act, which established uniform standards for recreational vessel numbering and safety equipment.
The United States Coast Guard has been given the mission of establishing safety equipment requirements, construction standards, flotation and capacity standards, and similar regulations for recreational vessels.
In addition to the federal standards, the state may also supplement or add to the federal requirements. It is important to check with the Marine Patrol or similar agency in your state to obtain their guidelines.