Mississippi Code Title 73. Professions and Vocations § 73-69-13

(a) Class B license: Alarm System Technician. Such license shall authorize its holder to design, plan, specify, lay out, sell, pre-wire, install, maintain, repair, test, inspect or service an electronic protective system while in the employ of an alarm contracting company.

(b) Class C license: Alarm System Installer. Such license shall authorize its holder to design, plan, specify, lay out, sell, pre-wire, install, maintain, repair, test, inspect or service an electronic protective system while in the employ of an alarm contracting company.

(c) Class D license: Alarm System Salesperson. Such license shall authorize its holder to design, plan, specify, lay out or sell an electronic protective system while in the employ of an alarm contracting company.

(d) Class H license: Alarm System Helper. Such license shall authorize its holder to pre-wire, or assist a Class B or Class C license holder install or service an electronic protective system while under the direct supervision of a licensed Class B or Class C holder in the employ of an alarm contracting company.