Design, construction, installation and testing of automatic sprinkler systems in buildings of residential occupancy throughout, not more than 4 storeys in building height conforming to Articles 3.2.2.42., 3.2.2.43., 3.2.2.45. or 3.2.2.48.

This applies to buildings described in Sentence 1.3.3.2.(1) of Division A in which automatic sprinkler systems are installed.

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] in which automatic sprinkler systems are installed, as stated in Sentence 9.10.1.2.(8).

Exceptions: 

To exempt certain buildings from the requirements of Sentence 3.2.5.13.(1) and permit sprinkler systems in such buildings to conform to a different standard, on the basis that the different standard is appropriate for such buildings. This [the reference to the different standard] is to limit the probability that automatic sprinkler systems will not meet proper standards, which could lead to such systems not performing in the way intended in a fire situation, which could lead to a fire not being suppressed or controlled, which could lead to the spread of fire to other parts of the building, which could lead to harm to persons.