Maryland Code, Natural Resources § 8-738.3

(1) A vessel required to be registered with the Department under this subtitle;

(2) A vessel required to have a valid number awarded in accordance with a federal law or a federally approved numbering system of another state; and

(3) A vessel from a foreign country using the waters of the State.

(1) For a first offense, shall be subject to a fine of not more than $1,000 or imprisonment for not more than 1 year or both;

(2) For a second offense, shall be subject to a fine of not more than $2,000 or imprisonment for not more than 2 years or both; and

(3) For a third or subsequent offense, shall be subject to a fine of not more than $3,000 or imprisonment for not more than 3 years or both.