Maryland Code, Business Occupations and Professions § 6-302

(a) In a local jurisdiction that requires local registration and has qualified to register electricians locally under § 6-103 of this title, the State license, while the State license is in effect, serves only as a mechanism that helps a licensee in obtaining a local registration under §§ 6-601 and 6-602 of this title.

(b) If a county or municipal corporation does not require local registration, the State license, while the State license is in effect, authorizes the licensee to: