(1) Where the height of a shelf and rack storage system, measured from the floor supporting the system to the topmost portion of the shelf, exceeds 18 m,
(a) a fire alarm and detection system conforming to Subsection 3.2.4. shall be installed with,
(i) pull stations located at all exit doors including exit doors serving elevated decks and walkways, and
(ii) smoke detectors located, at the ceiling of all rooms and areas containing the shelf and rack storage system, within exit stair enclosures at the top, and at every third level of elevated deck or walkway, and
(b) the fire alarm and detection system required by Clause (a), shall be designed to notify the fire department upon activation, and
(c) the shelf and rack storage system shall be designed only for the storage of Class I, II and III commodities as defined in NFPA 13, “Installation of Sprinkler Systems”.