If an applicant qualifies for a journey plumber license, a master plumber license, a limited license, a master natural gas fitters license, a journeyman natural gas fitters license, an apprentice natural gas fitters license, or a propane gas fitter certificate under this subtitle, the Board shall send the applicant a notice that states that: the applicant has qualified for a license; and the Board will issue a license to the applicant on receipt of: if contracting in the name of the applicant or another person to provide plumbing services, proof of the liability insurance as required under § 12–501 of this title; and a license fee set by the Board. On payment of the appropriate license fee and, if applicable, receipt of the proof of the insurance required under § 12–501 of this title, the Board shall issue a license to each applicant who meets the requirements of this subtitle. Any master plumber, journey plumber, or apprentice holding a valid license is eligible to participate in a Board–approved cross connection/backflow prevention certification program to be certified as an approved cross connection/backflow prevention technician. Only a master plumber or journey plumber possessing certification shall be authorized to certify the installation and testing of mechanical cross connection control devices. For the purpose of certification of the installation and testing of mechanical cross connection control devices, a local jurisdiction may adopt regulations or enact laws that have qualifications comparable to or more stringent than paragraph (2) of this subsection.