Md. Code Ann., Nat. Res. § 4-741
A person in charge of any boat or vessel catching or transporting shellfish commercially may not carry on board a domestic animal of any kind.
Added by Acts 1973, 1st Sp. Sess., c. 4, § 1, eff. Jan. 1, 1974. Amended by Acts 1978, c. 920.
Formerly Art. 27, § 158 ½.