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9.16.2.2.(3)
OS3
ObjectiveOS3 Safety in Use
Attribution
Application
Application 1: 
Compaction of fill beneath floors supported on-ground, in buildings to which Part 9 applies [see Sentence 1.3.3.3.(1) of Division A for application of Part 9].
Exceptions: 
except as stated in Sentence 9.16.2.2.(4), which applies to fill beneath floors-on-ground where the material is clean coarse aggregate containing not more than 10% of material that will pass a 4 mm sieve.
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Intent
Intent 1: 
To limit the probability of an inadequate structural support for floors-on-ground, which could lead to excessive deflection or cracking of the floor, which could lead to uneven surfaces, which could lead to persons tripping or falling, which could lead to harm to persons.
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