Maryland Natural Resources Section 10-308.2
§ 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.