Skip to Content

How to Get Your Campervan Self-Contained in New Zealand

How to Get Your Campervan Self-Contained in New Zealand

This blog may contain affiliate links. Read our disclosure policy for more info.

This blog includes everything you need to know about getting self-contained certified in New Zealand including the specific requirements and how to meet them. If you are planning on doing a campervan conversion, then reading this blog first is essential!

How to Get Self-Contained Certified in New Zealand

Converting a vehicle into a livable campervan or motorhome is an exciting journey, however, there are a few things that can make it stressful. In New Zealand, one of those things is a self-contained certificate. With this certificate, you have to option to camp in thousands of places across New Zealand completely free!

But without it, freedom camping becomes a lot more difficult and you risk getting a hefty fine.

But getting your campervan in New Zealand certified self-contained can be challenging and downright confusing.

After getting my own campervan the self-contained certification, I realized it didn’t have to be this way, and instead it was actually quite easy once it was explained to me properly.

So in this post, I will outline all the things you need to do in order to get self-contained certified in New Zealand, in a few simple and easy steps!

*This guide was written for the intended use of small van conversions (not larger fixed tank conversions.) It is also in accordance with the New Zealand self-contained certification standards NZS 5465:2001, so be sure to check your local council’s requirements (if any) before starting your campervan conversion!

What is a Self-Contained Certification in New Zealand?

hooking up the plumbing in our campervan conversion
This picture shows my set up under the sink. One thing to note is that the freshwater pipe (left) actually has a cover on it (leftover pipe from the waste pipe). I only did this as extra protection from the sun and underneath it is a 12mm hose.

A self-contained certificate in New Zealand is a license that certifies that your campervan or motorhome can be self-sufficient for up to 3 days. This means dealing with all types of waste and providing ample fresh water.

In order to get this certificate though, you must meet a detailed list of requirements and pass a thorough inspection.

All of the requirements of a self-contained vehicle are based around those two rules and these both protect the environment and the user.

Who Issues the Self-Contained certification?

Around New Zealand, there individuals and companies that inspect campervans and issue self-contained certificates to them. They are usually plumbers.

In some areas of New Zealand (such as Queenstown,) there are no local inspectors and you will have to travel to find one. However, in areas such as Auckland, testing officers they can be found very easily.

You can find a list of self-contained testing officers for the South Island here and North island here!

Related Read:   Guide to Buying a Campervan in New Zealand

Self-Contained Requirements in New Zealand

our campervan conversion
Our campervan (her name was Betsy!)

Below are the self-contained requirements in New Zealand put in simple terms. There is a huge book that inspectors use that outlines the rules, but I have summarized the main points below.

Important Note:

When you go to get your van inspected for self-contained certification, you must declare how many people can live in the van. This is important because it changes the amount of freshwater and the size of waste tanks you need. Most people build a campervan to house only two people.

Fresh Water Tank

You must carry 12 liters of fresh water per person (4 liters per day for 3 days) you plan to get your campervan self-contained for. This means that for two people you need 24L, or for 3 people, 36L.

This tank must be opaque and made of non-toxic material. Most tanks intended to hold drinking water will meet this requirement.

The inlet (lid on portable tanks) must be no smaller than 25mm in diameter (unless it is pressure fed, then 12mm is fine.)

Grey Water Tank

The grey water tank will be connected to the sink in your van and sealed so it doesn’t leak. You need to be able to carry 12L per person (the same as the freshwater.)

This tank needs a vent (mentioned in detail below) that must rise from the grey water tank up to the sink and terminate outside the van. I used a hole in the step of my van for this but you may need to drill one. Please do not drill through the side of your van.


You must have a sink connected to your grey water tank via a trap. The trap can simply be a loop in the hose to trap water.

The sink also needs a tap that is connected to your freshwater tank. This can either be a pump tap or electric tap


All of the water tanks must have vents. These vents allow air to flow in and out the tanks when water is being taken out or draining in (allow water movement easily.)

Evacuation hose

If you have a fixed tank, your evacuation hose needs to be 3m. If your tanks can be removed then this is not important as you can simply remove your tanks and pour the waste out.

Online it does say that even if your tank is portable you need this hose, however, during my certification, this wasn’t even brought up.

Rubbish bin with a lid

You need to have a rubbish bin (garbage can.) There is no size requirement for this.

The rubbish bin does need to be fixed to the vehicle to prevent the garbage from flying all over the place when you are in motion. A simple strap to hold the bin in place and upright will do the trick! The bin must also have a lid.


guidelines to getting a van self contained in New Zealand
The bed is down and we can still use our toilet

A fixed or portable toilet is required and must have 3L of waste storage per person. The new rules state that you must be able to use the toilet with the bed down and have some elbow room.

Related Read:   Motorhome Hire in New Zealand - Everything you need to know

Steps to Hooking Up Your Sink for Self-Contained Certification

sink in a campervan
A sink in a campervan.

Step 1: Secure your sink and fresh/grey water tanks

Part of the requirements for getting self-contained in New Zealand is having your tanks securely fitted so they don’t move around while driving and having a fixed sink.

If you have a fresh and grey water fixed tank that can’t be removed then this isn’t an issue, however, if you plan to use portable tanks then you must have a way of temporarily fixing the tanks while you’re in your campervan.

I did this in my campervan by building a wooden frame around the sides and using elastic straps. However, there are no set rules to this and you can do this however you want.

The sink must be permanently installed. I did this by cutting a hole in my kitchen bench (countertop) and gluing it in.

Step 2: Hook up the grey water tank to the sink

For your grey water tank, you will need to run a waste pipe from the bottom of the sink to the grey water tank. This must be watertight and must have a water trap.

The rules around the size of the hose state that it must be no smaller than 18mm if the hose is less than 3m, and 25mm if it’s over 3m. For my setup, I only needed an 18mm hose.

To connect the waste pipe to the grey water tank I drilled a hole in the tank and then glued in a plastic fitting that the hose could be hose clamped too.

The tank must also have a vent no smaller than 12mm in diameter that is connected to a hose that terminates outside the vehicle. This hose must travel higher than the waterline of the sink before exiting the vehicle. The Below diagram explains this.

I bought my vents from Burnesco and they cost me $12 each. These vents require you to simply drill a hole in your tank and push them in.

Guidelines to getting self contained in new Zealand
The guidelines to the sink. You do not need a plastic trap and can simply loop your drain pipe to create a trap.

Step 3: Hook up freshwater

To hook up the freshwater tap you need to buy a hose that will connect to the fitting on your tap. Once you have this hose, drill a hole the same size in your freshwater tank. Then, run your hose from the bottom of the tank through the hole you drilled and up to the tap. You should be able to use hose clamps to connect this part to the tap.

In your freshwater tank, you should also have a vent. Install this the same way as the greywater vent but you do not need the extra hose connected to the vent to exit the vehicle.

Important Guidelines about Getting Self-Contained in New Zealand

working on building a campervan
It was a lot of work building my campervan, and understanding the requirements was one of the hardest parts!

One of the most helpful guides I found on the internet was this APCNZ guideline book to getting self-contained. If you are specifically converting a small van (like I was) then you can read the whole book, but page 14 is the most specific to the smaller van conversions.

Another helpful guide is this New Zealand government regulation handbook. This is the same as the guide above, however, I found it is written in a more confusing way.

Where to Buy Your Equipment?

Bunnings or Mitre 10 – These hardware stores are great for most of your hoses, glues, hose clamps, and fittings. However, I could not get food grade hose from them.

Burnsco – These guys are a motorhome hardware supplier in New Zealand. They have the right size vents and food grade hoses for your freshwater. I also got my sink and pump tap from them. If there is a Burnsco near you go see them and they can help you out a lot when it comes to getting certified. Otherwise, you can order things online and get them shipped right to you!

Repco – I got my water tanks from them. I only used them as I was in Queenstown and they delivered for free to my house. You could, of course, get these tanks at Burnsco or Bunnings too.

Related Read:   The Truth about Living in a Van: Pros and Cons

Cost of Equipment and Self-Contained Certification in NZ

Certificate – This cost me $150 but you can get it much cheaper. I was in Wanaka and there is only one guy who does it there, so he charges what he wants.

Tanks – The tanks were $25 each, so $50 total.

Vents – $12.50 each, so $25 total.

Pump tap – $60

Sink – $100, you could get this much cheaper if you find one secondhand.

Hose clamps and fittings – $20

Toilet – $40 as I got my second hand. They are around $110 brand new

Rubbish Bin – $6 from Kmart

Tools to remove tanks for dumping – $5. I bought a flat head screwdriver for the hose clams

Straps to hold tanks in place – $5

Total = $461

Keep in mind that fully converting my van cost much more than the price above after calculating in the cost of wood, accessories, and extras (such as a second battery.) For a full list of how much converting my van cost, check out my guide to DIY Campervan Canversion!

Our finished self contained campervan in new Zealand
The finished product of the campervan I built while in New Zealand

Let’s be honest, making your own self-contained campervan in NZ is a lot of work! If you decide to rent on instead, check out our guide to campervan rental in NZ to help you decide on what exactly you need!

Getting my van self-contained was a big hassle and my goal for this post is to make it easy for others. If there is something you don’t understand or need help with, just leave a comment below and I’ll help you the best I can.

If you would like more information on building or converting a van into a campervan check out out all of our blogs about vanlife! And, if you plan on traveling in New Zealand, we have written a ton of blogs that include useful info on the things to do in NZ including road trip itineraries, the best places to visit, and more!

Read more:

10 Tips for Scoring a CHEAP Campervan in New Zealand

What to Expect When Freedom Camping in New Zealand

Essential Tips for Buying a Campervan in New Zealand

22 Free and Cheap Things to do in Auckland


Like it? Pin it! Click here!

Pouakai Hut - The Best View of Mount Taranaki
← Previous
11 Must-Do Day Hikes in Queenstown
Next →