New Zealand guards its border about as hard as anywhere on earth, and the Ministry for Primary Industries (MPI) runs the rules. If a customer's shipment "needs fumigation for New Zealand", the trigger is usually the same bug Australia worries about: the Brown marmorated stink bug. The difference is in how MPI scopes it. Sort the treatment, the certificate and a genuinely clean container before sailing, and the cargo clears its transitional facility without drama.
The bug, and why MPI cares
BMSB shelters over winter in dry, enclosed spaces, so it travels well inside containers, on vehicles and tucked into machinery. It isn't established in New Zealand and MPI intends to keep it out, because it would hammer horticulture and become a household pest. So during the bug's dormant season MPI treats cargo from risk origins as a live pathway and requires it to be cleaned up before it ever reaches the country.
The BMSB season: 1 September to 30 April
MPI's measures run on the same calendar as Australia's. They apply to target goods that are exported on or after 1 September and will arrive in New Zealand on or before 30 April. Note the framing: it's pinned to both the export date and the arrival date, so a late-season sailing that lands after 30 April can fall outside the window. Plan the booking around it rather than assuming.
There's one useful exception. BMSB management isn't required if the target goods are loaded into a fully enclosed container, sealed before 1 September and exported before 1 October of the same year. To use it you need proof: the seal number and a date-stamped photo of the sealed container.
What's actually in scope: vehicles, machinery and parts
This is where New Zealand differs from Australia's broad goods-chapter approach. MPI's BMSB management measures bite on vehicles, machinery and parts imported from the risk countries listed in schedule 3 of the relevant Import Health Standard. Whether your specific consignment is caught comes down to the commodity and the origin against that schedule, so the Import Health Standard is the document to read, not a generic country list.
Treatment and the certificate
Where treatment is required, it only counts if it's done by an MPI-approved offshore treatment provider before arrival in New Zealand. Onshore treatment after the fact isn't the planned route here. The accepted methods are the usual BMSB toolkit (heat treatment and approved fumigants such as methyl bromide or sulfuryl fluoride), and the result has to be documented on a treatment certificate that travels with the cargo. No approved provider behind it, no valid certificate.
Watch transhipment. Goods made in a non-risk country can still get caught if they tranship through a risk country during the season, because that exposes them to the bug. MPI has specific transhipment requirements for exactly that case, so route matters as much as origin.
Clean containers and wood packaging
Two more things MPI checks hard, independent of BMSB:
- Sea container hygiene. Every container must be externally and internally clean and free of soil, seeds, plant material and pests. All sea containers arriving in New Zealand are directed to a transitional facility and unpacked there under the Sea Containers Import Health Standard. A dirty container gets held and cleaned at your cost.
- Wood packaging. Pallets, crates and dunnage must meet Ispm15: treated, marked, bark-free. New Zealand's Wood Packaging Import Health Standard builds on ISPM 15. See Wood Packaging Ispm15 for the marking and treatment detail.
A BMSB-treated shipment can still be stopped over a dirty container or a non-compliant pallet, so treat all three as part of the same job.
What happens if you get it wrong
Non-compliant cargo at the New Zealand border doesn't just wave through. Depending on what's wrong, MPI can hold it, order treatment or cleaning at a transitional facility, re-export it, or in the worst case destroy it. All of that runs up storage and handling while the box sits. The fix at origin is far cheaper than the fix at the border.
How Nexport Logistics handles New Zealand
We read your commodity and origin against the current MPI Import Health Standard, arrange offshore treatment with an approved provider where it's needed, and make sure the treatment certificate, container condition and Ispm15 marks all line up before the vessel sails. It runs alongside your booking and Customs file in Nexportal.
Shipping vehicles, machinery or parts to New Zealand? Email info@nexportlogistics.nl and we'll confirm upfront what your cargo needs.
Official sources: MPI — Brown marmorated stink bug requirements for importing vehicles, machinery and parts · MPI — Importing wood packaging and ISPM 15 material. Related: Ispm15 · Wood Packaging Ispm15 · Customs