Md. Code, Natural Resources § 10–308.2

Notwithstanding any other provision of law, a nonresident may hunt snow geese in this State without a resident or nonresident Maryland hunting license if:

(1) The nonresident possesses a valid hunting license from the nonresident’s home state;

(2) The nonresident purchases a Maryland migratory game bird stamp; and

(3) The nonresident’s home state allows a Maryland resident to hunt snow geese without a nonresident hunting license from the home state in accordance with the following conditions:

(i) The Maryland resident must possess a valid Maryland hunting license; and

(ii) The Maryland resident must purchase a migratory waterfowl stamp from the home state.