Detailed technical requirements for gas distribution, gas installations, gas quality, gas appliances, gas odourisation and gas measurement are contained in New Zealand Standards, available from the Standards New Zealand website.
Standards under regulations for gas safety
Standards applicable for certification of gas appliances and fittings
In addition to the Standards, the Act provides for Codes of Practice.
Gas Codes of Practice (GCP)
Currently the only Gas Code of Practice cited in the Regulations is NZGCP 02:1993: New Zealand Gas Code of Practice for the Maintenance and Safety of CNG Refuelling Stations.