Our Technical Team regularly responds to queries regarding clearances from gas cylinders and gas meters. The clearance from a gas cylinder is outlined in clause 4.18.2 of AS/NZS 3000:2018.
Gas meter clearances are specified in clause 5.5 of the Atco Gas meter box location handbook:
These clearances are applicable in areas supplied by Atco Gas. For areas that are supplied with reticulated LPG, the gas network operator should be consulted.