Maryland Code, Public Safety § 11-101

(b)(1) “Dealer” means a person who is engaged in the business of buying or selling explosives.

(2) “Dealer” does not include a manufacturer.

(c)(1) “Explosives” means gunpowder, powders for blasting, high explosives, blasting materials, fuses other than electric circuit breakers, detonators and other detonating agents, smokeless powder, and any chemical compound or mechanical mixture that contains oxidizing and combustible units or other ingredients in such proportions, quantities, or packing that ignition by fire, friction, concussion, percussion, or detonation of any part of the compound or mixture may and is intended to cause an explosion.

(2) “Explosives” includes:

(3) “Explosives” does not include fixed ammunition for small arms, small arms ammunition primers, small arms percussion caps, safety and pyrotechnic fuses, quills, quick and slow matches, friction primers, fireworks, or common matches when used in their original configuration.

(1) smokeless powder for loading or reloading small arms ammunition; or

(2) black powder for loading or reloading small arms ammunition, antique arms, or replicas of antique arms.