Home › USC › Title 46 › Chapter 12546 U.S.C. Chapter 125 — VESSEL IDENTIFICATION SYSTEM§ 12501— Establishment of a vessel identification system§ 12502— Identification numbers, signal letters, and markings§ 12503— Information available to the system§ 12504— Information available from the system§ 12505— Fees§ 12506— Delegation of authority§ 12507— Penalties