Md. Code Ann., Bus. Occ. & Prof. § 18-301
Except as otherwise provided in this title, a person may not engage, or solicit to engage, in the business of providing security systems services in the State unless the person obtains a license and meets the requirements of § 18-401 of this title.
Added by Acts 1994, c. 362, § 1, eff. Oct. 1, 1994. Amended by Acts 1995, c. 3, § 2, eff. March 7, 1995; Acts 1997, c. 520, § 1, eff. Oct. 1, 1997; Acts 2001, c. 649, § 1, eff. Oct. 1, 2001.