MPI Biosecurity: Getting Through the NZ Border Without Nasty Surprises

Picture this: your first container arrives at Tauranga, Customs is happy, GST is paid — and then MPI opens the doors and finds your goods stacked on untreated wooden pallets. Your options are now treatment or destruction of the packaging, at your expense, with your stock sitting in limbo while it happens. Nothing about your product was wrong. Your supplier just used cheap pallets.

New Zealand runs one of the strictest biosecurity regimes on earth, for good reason — our primary industries are the economy, and one invasive insect can do billion-dollar damage. The Ministry for Primary Industries (MPI) polices this under the Biosecurity Act 1993, and its powers are sweeping: inspect, treat, hold, destroy, or order goods re-exported — all at the importer's expense.

The system isn't there to catch you out. It's predictable, documented, and entirely manageable if you do three things before ordering. Here's how.

Know if your product is high-risk

Biosecurity risk isn't about your product's quality — it's about what can hitchhike on it. The categories that attract MPI's attention:

• Timber and wooden furniture — insects and larvae in the wood itself
• Natural fibres — seagrass, rattan, bamboo, wicker, coir
• Outdoor and garden goods — pots, tools, furniture that may carry soil or plant material
• Gym equipment — rubber matting and padding with plant-fibre content has a history of interceptions
• Stone and clay items — soil contamination
• Used goods of any kind — machinery, vehicles, second-hand anything gets heavy scrutiny
• Anything visibly contaminated — soil on a container's underside can flag the whole box

Plastic phone cases and electronics in clean cartons? Low risk. A container of rattan outdoor furniture? Expect attention, and plan for it.

Before you order, check whether an Import Health Standard (IHS) applies to your product on mpi.govt.nz. An IHS sets out exactly what condition goods must arrive in and what treatments or declarations are required. If your product has one, the requirements go into your purchase order, spelled out for the supplier — Chinese factories with no NZ customers will not know our rules, and it's your job as importer to tell them.

ISPM 15: the pallet rule that catches everyone

The single most common biosecurity failure has nothing to do with the product. It's the wood packaging.

All solid-wood packaging entering New Zealand — pallets, crates, dunnage, bracing — must comply with ISPM 15: heat treatment at 56°C for 30 minutes, or fumigation, certified by a stamp on the wood showing the country and producer code. No stamp, or an illegible one, and MPI treats the packaging as non-compliant. The consequences are treatment or destruction costs, delay, and sometimes unpacking your entire consignment onto compliant pallets.

The fix costs one line in your purchase order: "All wood packaging must be ISPM 15 compliant and stamped accordingly." Then verify — ask for photos of the stamped pallets before the container is loaded, and have your pre-shipment inspection confirm it. Better still, ask your supplier to use plastic pallets and skip the issue entirely where the economics allow.

Get the container paperwork right

Sea containers themselves are a biosecurity pathway. Containers arriving in NZ need quarantine declarations covering their cleanliness, and go to approved transitional facilities for devanning rather than just anywhere you fancy. In practice your freight forwarder and customs broker manage this — the entry lodged through the Trade Single Window feeds MPI alongside Customs — but two things sit with you:

• Tell your supplier the container must be clean, dry and free of soil and plant material before loading. Photos before loading cost nothing.
• Make sure your forwarder knows your goods' nature so any inspection is scheduled, not a surprise.

If MPI does direct an inspection or treatment — fumigation, washing, heat treatment — you pay, and your timeline stretches. Build a buffer into your launch plans for risk-category goods rather than promising customers stock the day the vessel berths.

Make it boring

The importers who never have MPI stories are the ones who treat biosecurity as a specification, not a surprise. Their purchase orders specify ISPM 15 packaging and clean containers. They've checked mpi.govt.nz for an IHS before falling in love with a product. They avoid marginal categories early on — leaving the used machinery and seagrass baskets until they have experience and a broker relationship. And their inspections photograph pallets, not just products.

That's the whole game: MPI publishes the rules, and suppliers will follow them — but only if you put the rules in front of them and check.

Key takeaways

• MPI can inspect, treat, hold, destroy or re-export non-compliant goods — always at your expense — under the Biosecurity Act 1993.
• Check mpi.govt.nz for an Import Health Standard on your product before ordering, and put the requirements in your purchase order.
• ISPM 15 wood packaging (heat treated 56°C/30 min or fumigated, and stamped) is mandatory — specify it, then verify with photos and your inspection.
• High-risk categories (timber, natural fibres, outdoor goods, used items) need extra planning; keep first imports to clean, low-risk products.

Related: Packing, Labelling and Shipping Marks — Including the ISPM 15 Pallet Rule, The New Goods Management Levies: What Changed at the NZ Border in April 2026

Figure: MPI attention by category — risk is about what can hitchhike on your goods.

Packing, Labelling and Shipping Marks — Including the ISPM 15 Pallet Rule

An untreated wooden pallet can cost you more than your entire freight bill. Under New Zealand's Biosecurity Act, MPI can order non-compliant wood packaging treated, destroyed or re-exported — at your expense — and your goods sit in limbo while it happens. Packing and labelling feel like the boring end of importing, but they're where careless orders bleed money at the border. Here's what to specify, and when.

ISPM 15: the pallet rule that catches Kiwis out

All wood packaging entering NZ — pallets, crates, dunnage — must comply with ISPM 15: heat treatment at 56°C for 30 minutes, or fumigation, evidenced by the stamped mark showing the country and producer code on the wood itself.

Your job is one line in the purchase order: "All wood packaging must be ISPM 15 compliant and stamped." Then have your pre-shipment inspection confirm the stamps exist. A factory that ships on cheap untreated pallets isn't saving you money; it's buying you treatment or destruction costs and days of delay at a transitional facility. If in doubt, plastic pallets sidestep the issue entirely (check they're clean — MPI cares about soil contamination too).

Why marking matters at all

Export markings aren't decoration. They exist to meet shipping regulations, ensure proper handling, conceal the contents' identity from opportunistic hands, help receivers identify shipments, and satisfy environmental and safety rules. Every one of those failures has a cost attached.

Export carton markings: the checklist

Specify these in your PO and have the supplier mirror them on the packing list and invoice:

• Shipper's mark (your reference)
• Country of origin — "CHINA"
• Weight in kilograms (include pounds if the carton may transit US-linked logistics)
• Number of packages and case dimensions in centimetres
• International handling pictograms and safety marks like "This Side Up" in English
• Port of entry (e.g., Auckland or Tauranga)
• A short product description

Apply markings on three faces of each carton — the top plus two sides or ends. A carton marked on one face is unreadable the moment it's stacked the wrong way round in a container.

Country-of-origin labelling on packages is strictly enforced in many markets, and your freight forwarder or an export packing specialist will know the current requirements — ask them when unsure rather than guessing.

Carton quality: borrow the big-retailer spec

Large retail buyers impose packing standards worth stealing selectively even as a small importer:

• Double-ply export cartons that pass a drop test on at least three cartons
• Maximum 25 kg gross weight per carton — heavier boxes get dropped, dragged and damaged (and your own back will thank you at the warehouse end)
• Carton footprints matched to pallet dimensions with no overhang — overhanging cartons carry load badly and arrive crushed

Put your chosen requirements in the PO. Suppliers default to whatever's cheapest unless told otherwise.

Rating labels and gift-box labels

Rating labels are the on-product data labels — the sewn-in tag on textiles, the specification plate on electronics. Suppliers usually hold templates; you supply the correct content. For anything electrical or wireless sold in NZ, this is where compliance meets the customer: make sure the label content lines up with what our Electricity (Safety) Regulations and Radio Spectrum Management rules require for your product type — and check the current specifics with a test lab or on the regulators' sites before you print thousands of them.

Gift-box and retail labels vary by sales channel and destination, so specify them at order time. A good supplier proactively asks about labelling once the PO lands; a silent one is a supplier you chase.

Lithium batteries: special case, every time

Products with lithium batteries — installed or shipped separately — carry special packaging, labelling and documentation requirements, and some transport modes bar them outright. Confirm the rules with your courier or forwarder before ordering, not after the shipment is refused. This applies to samples too: some battery products can't travel by ordinary airmail at all.

One printer, one colour standard

If your packaging is printed across multiple items or reorders, have all of it printed at the same printing factory, and supply artwork files plus Pantone colour codes. Different printers mean visible colour drift between batches — the kind of thing retail buyers notice instantly and customers read as "fake."

Key takeaways

• Put ISPM 15 compliance in your PO and verify the stamps at inspection — MPI treats, destroys or re-exports non-compliant wood at your cost.
• Mark cartons on three faces with origin, weights, dimensions, handling marks and port of entry.
• Cap cartons at 25 kg, demand drop-tested double-ply board, and match footprints to pallets.
• Lithium batteries and rating labels have their own rule sets — confirm before production, not at the border.

Related: MPI Biosecurity: Getting Through the NZ Border Without Nasty Surprises, NZ Product Compliance: Electrical, Wireless, Toys and Safety Standards

Figure: The packing and labelling items to specify in your PO and verify at inspection.