Protection of mezzanines, where mezzanines:

• serve a Group A, C, D, E or F major occupancy,
• are 500 m² or less in area, and
• conform to Sentence 3.2.1.1.(3) or (4).

This applies to buildings described in Sentence 1.3.3.2.(1) of Division A.

This also applies to buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9], where there are:

• openings through floors that are not protected by shafts or closures, as stated in Sentence 9.10.1.2.(6), or
• interconnected floor spaces, as stated in Sentence 9.10.9.5.(1).

To exempt mezzanines serving certain major occupancies from the requirements of Sentence 3.2.8.1.(1) and Articles 3.2.8.3. to 3.2.8.9., which would otherwise require a vertical fire separation or certain fire protection measures, on the basis that the mezzanine area is limited in size and sufficiently open to allow occupants to detect a threat to their safety and not be excessively delayed in reaching an exit.