Answer
Maryland rules cover allowable gear, power assists, and where devices may be possessed or used—regulations change and species-specific bans exist. Transporting spearguns through crowded boardwalk areas raises separate public-safety questions; verify before packing.
Sources: Maryland DNR · Visit Ocean City
Editorial visitor guidance for Ocean City, Maryland. Confirm current Town of Ocean City, Maryland DNR, NPS Assateague, and NWS rules when regulations or safety apply.
