Title 46 of the Code of Federal Regulations

Title 46 is the portion of the Code of Federal Regulations that governs shipping within the United States for the United States Coast Guard, the United States Maritime Administration, and the United States Maritime Commission. It is available in digital or printed form.
Title 46 and Title 33 of the Code of Federal Regulations are usually consulted by Classification societies, engineering firms, deck officers on oceangoing vessels, and marine engineers.
It is divided into four chapters: