Following are some sites with useful related information.
Gas Appliance Suppliers Association (GASA)
Gas Association of New Zealand (GANZ)
See the report on Gas Availability
Energy Safety Service (ESS)
Plumbers Gasfitters & Drainlayers Board
Master Plumbers, Gasfitters and Drainlayers NZ Inc
COPYRIGHT (c) 2003-2004 PLUMBERS SUPREME LTD ALL RIGHTS RESERVED
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(c) 2003-2004 PLUMBERS SUPREME LTD ALL RIGHTS RESERVEDCOPYRIGHT
(c) 2003-2004 PLUMBERS SUPREME LTD ALL RIGHTS RESERVED