Western Australian Consolidated Regulations Western Australian Consolidated Regulations (1) A site used for
the testing of vehicles under this Part shall consist of a clear flat space 15
metres in diameter.
(2) The area
surrounding a site referred to in subregulation (1) shall be as nearly
level as is practicable and there shall not be any buildings, parked vehicles,
signboards, walls or other objects with large sound reflecting surfaces within
a radius of 50 metres of that site.