Md. Code Ann., Nat. Res. § 4-610
A person shall possess his angler's license while angling in nontidal waters and, upon demand, shall exhibit the license to any Natural Resources police officer, law enforcement officer, or landowner or his representative.
Added by Acts 1973, 1st Sp. Sess., c. 4, § 1, eff. Jan. 1, 1974.
Formerly Art. 66C, § 220.