How to Convert Blue to Green Self-Containment in New Zealand

The transition period has ended: all blue warrants expired on 7 June 2026. If your vehicle still only has a blue warrant, it is no longer recognised as self-contained and you cannot freedom camp where certification is required until it passes a green inspection. New blue warrants cannot be issued — green certification through a Certification Authority is the only path. If you want to freedom camp this season, book an inspection now; certifier availability tightens over spring and summer.

Under the new system (Plumbers, Gasfitters and Drainlayers Board / PGDB), your vehicle must have: a fixed toilet (permanently fixed to the vehicle; portable toilets no longer qualify), a water supply system, wastewater system (grey and black water), ventilation, a sink draining to the wastewater system, and secure rubbish storage. The detail is in the Self-contained Vehicles Regulations and PGDB guidance. Green certification is shown by a warrant card (green stickers have no legal status).

1. Assess your current fit-out — do you already have a fixed toilet, adequate tanks, and ventilation? 2. If not, decide the scope of upgrades (fixed toilet install, tanks, hoses, vents). Structural or gas modifications may need LVV certification (separate from self-containment). 3. Use the PGDB guidance and national register to find a Certification Authority in your region. 4. Book an inspection. 5. Pay the $120 (incl. GST) SCV levy to the Certification Authority, plus its inspection and certification fee. 6. Once certified, receive your certificate and green warrant card and display the card as required. Certification is valid for 4 years unless revoked earlier.

Levy: $120 (incl. GST) — mandatory for every green warrant; paid to the Certification Authority. Inspection fee: Set by each Certification Authority (varies). NZMCA members: Inspection by NZMCA is free as a member benefit; the $120 levy still applies. Upgrades (if needed): Costs depend entirely on your build. Rough indicative ranges (supply and fit): fixed toilet/cassette system $500–$2,500+, fresh/grey water tanks and hoses $300–$1,500+, ventilation and seals $100–$500+. Get quotes from a certifier or fitter before committing.