Each registered firm that employs an individual who is exempt from the licensing requirements of this chapter under Section 6002.155(10) shall appropriately train and supervise the individual to ensure that:
(1) each installation complies with the adopted provisions of National Fire Protection Association Standard No. 72 or other adopted standards;
(2) each smoke or heat detector installed or sold carries a label or listing of approval by a testing laboratory approved by the department; and
(3) the individual is knowledgeable in fire protection and the proper use and placement of detectors.