A current Electrical Warrant of Fitness is a requirement of law in New Zealand if the motorhome/caravan is to be connected to the 230 volt supply system. The electrical WOF is valid for four years from month of issue. A warrant can only be issued by a Registered Electrical Inspector, and because their signature and registration number are on the form, they certainly will not issue it unless all testing is complete and up to standard.
The person issuing the warrant must leave a copy of the WOF form together with an identifying sticker for the vehicle window with the applicant. The warrant form, a copy of that form, or the WOF sticker shall be deemed to be proof of compliance. Any Registered Electrical Inspector can issue an electrical warrant- find a list of Electrical Inspectors who are members of the NZMCA by logging into the website and find them by area under Contact search.
There will be a charge for your warrant as Electrical Inspectors have some substantial costs to maintain their equipment, insurances and practicing license.
The maintaining of your WOF is a safety issue and would undoubtedly raise some legal investigation if there were to be a fire or electrical accident. Please check your electrical WOF before your holidays.