Maryland Code, Public Safety § 5-143

(a)(1) A person who moves into the State with the intent of becoming a resident shall register all regulated firearms with the Secretary within 90 days after establishing residency.

(2) The Secretary shall prepare and, on request of an applicant, provide an application form for registration under this section.

(1) the make, model, manufacturer's serial number, caliber, type, barrel length, finish, and country of origin of each regulated firearm; and

(2) the firearm applicant's name, address, Social Security number, place and date of birth, height, weight, race, eye and hair color, signature, driver's or photographic identification Soundex number, and occupation.