Answer
Yes—once you are in Delaware, DNREC and state park regulations govern alcohol, pets, fires, and fishing—not Ocean City Town ordinances. Read posted signs at the entrance and beach. Assumptions from Maryland beach days can get you fined.
Sources: Delaware DNREC · 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.
