(a) Each fire protection sprinkler system contractor must employ at least one licensed responsible managing employee on a full-time basis.
(b) A person may not act as a responsible managing employee unless the person holds a license issued by the department, conditioned on the successful completion of the license examination and compliance with the requirements of the rules adopted under this chapter.

(c) Notwithstanding Subsection (a), an individual or organization with a current registration certificate may act as a fire protection sprinkler system contractor for 30 days after the death or dissociation of its licensed responsible managing employee or for a longer period approved by the commissioner under the rules adopted under this chapter.