9. a. Telephone utilities and cable television companies regulated by the Board of Regulatory Commissioners pursuant to Title 48 of the Revised Statutes and persons in their employ while performing the duties of their employment are exempt from the requirement of obtaining a license to engage in the alarm business pursuant to this act.
b. Electrical contractors regulated by the Board of Examiners of Electrical Contractors pursuant to P.L.1962, c.162 (C.45:5A-1 et seq.) and persons in their employ while performing the duties of their employment are exempt from the requirement of obtaining a license to engage in the alarm business pursuant to this act.
c. Any person who is certified to engage in the fire protection equipment business or who holds a fire protection contractor business permit pursuant to P.L.2001, c.289 (C.52:27D-25n et al.) and persons in their employ are exempt from the requirement of obtaining a license to engage in the fire alarm business pursuant to this act.