Md. Code, Nat. Res. § 4-702

(a) Except as provided in subsection (b) of this section, a person may not buy for resale finfish, crabs, or shellfish from waters of the State unless the person is licensed and authorized as a seafood dealer under § 4–701 of this subtitle. (b) The following persons are not required to obtain a seafood dealer authorization under this section: (1) A person who buys finfish, crabs, or shellfish for personal use or consumption; (2) A person who buys for resale finfish or shellfish species defined as bait under subsection (c) of this section; and (3) A person who buys finfish, crabs, or shellfish from a person with a seafood dealer authorization under § 4–701 of this subtitle. (c) (1) Any person not otherwise licensed under § 4–701(d)(2)(ii)2 of this subtitle that harvests and sells finfish or shellfish species defined as bait under paragraph (3) of this subsection shall obtain a bait harvester permit from the Department. (2) The annual fee for a bait harvester permit is $25. (3) The Department shall adopt regulations defining which species of finfish and shellfish may be caught and sold as bait in accordance with a bait harvester permit issued under this subsection. (d) The Department shall adopt regulations to define the species that are included as shellfish under this section.