Managing yearly biosecurity rules is a vital job for commercial importers, supply chain managers, and freight teams across Australia. DAFW takes great care each year to establish rigorous biosecurity standards to prevent the introduction of invasive pests into the Australian environment. The most prominent seasonal insect threatening Australia’s agricultural and ecological stability is the Brown Marmorated Stink Bug.
Compliance with the new 2026–27 BMSB season Biosecurity Import Conditions will inevitably affect international sea freight operations due to the updated surveillance and document control requirements. Failure to meet these conditions may result in substantial financial losses due to port delays, returns, or treatments.
This guide gives you the full list of BMSB target risk countries, provides guidance on BMSB fumigation and explains the special declaration requirements for shippers. It also includes critical steps that should be taken to ensure the smooth transit of freight without biosecurity-related interruptions.
What is the Brown Marmorated Stink Bug and Why Does It Matter?
The brown marmorated stink bug (BMSB) is a species of true bug native to East Asia. Although the bug is not dangerous to humans, it can devastate commercial farms, nurseries, and Australia’s natural biome. It was reported to feed over 300 different plant species, including fruit, vegetable crops, and tree crops.
Adult stink bugs are strong insects capable of withstanding winter temperatures during the hibernation period. In Northern Hemisphere countries, they seek shelter in box-like structures, heavy vehicles, automobiles, wooden and metal cargo containers, and other suitable winter habitat areas. Such conditions can be found in various transport modes during international sea freight transit. Consequently, stink bugs can enter Australia through the port and establish a new infestation.
To stop this pest at the border, DAFF uses seasonal rules based on where cargo comes from, shipping dates, and good types.
When is BMSB Season in Australia for 2026–27?
The official BMSB season Australia for 2026–27 runs from 1 September 2026 to 30 April 2027 (inclusive).
The key details that decide if your cargo falls under these seasonal rules is the “shipped on board” date printed on your Ocean Bill of Lading.
- Sea Freight: Any target cargo shipped on board a vessel leaving a target risk country between 1 September 2026 and 30 April 2027 must meet all biosecurity rules.
- Ship Inspections: Extra vessel checks apply to all commercial ships docking at Australian ports during these exact months.
- Airfreight Rules: Normal airfreight cargo is usually exempt from forced overseas treatment, though random biosecurity checks still happen for high-risk goods coming from countries like China and the United States.
BMSB Target Risk Countries for 2026–27
If your goods are made in or shipped from any of the chosen risk locations by sea freight, your cargo must follow DAFF seasonal rules. The current season lists 39 target risk countries along with extra nations watched under emerging risk or ship inspection lists.
Full List of Designated Target Risk Countries
Emerging Risk and Extra Surveillance Nations
Along with the main target risk list, DAFF keeps a close eye on key trade hubs. Goods coming from these countries face special spot checks:
- Ship Checks Only: China, Japan, and the Republic of Korea.
- Emerging Risk Countries (Random Local Checks): United Kingdom, China, Japan, and the Republic of Korea. Importers bringing in goods under tariff chapters 39 (plastics), 94 (furniture), and 95 (toys and sports gear) from these places face higher spot check rates at Australian ports.
Categorising Goods: Target High Risk vs Target Risk
Not all cargo needs overseas BMSB fumigation or heat treatment. DAFF splits goods into clear risk groups using tariff numbers.
1. Target High Risk Goods (Must Be Treated)
Goods grouped inside the following Tariff Chapters need mandatory treatment overseas or in Australia before they can be released:
- Chapter 44 & 45: Wood, timber items, charcoal, cork.
- Chapter 57: Carpets and floor coverings.
- Chapter 68, 69, 70: Stone, plaster, cement, ceramic items, glass, and glassware.
- Chapter 72 & 73: Iron, steel, and items made of iron or steel.
- Chapter 74, 75, 76, 78, 79, 80, 81: Copper, nickel, aluminium, lead, zinc, tin, and other base metals.
- Chapter 82 & 83: Hand tools, cutlery, and mixed base metal items.
- Chapter 84 & 85: Boilers, engines, mechanical equipment, electrical machines, and parts.
- Chapter 87, 88, 89: Vehicles, aircraft, space gear, ships, and boats.
Crucial Rule: All target high-risk goods shipped as Break Bulk, including flat rack and open-top containers, must be treated overseas before coming to Australia. Untreated break bulk cargo arriving at an Australian port will be turned away and sent back overseas immediately.
2. Target Risk Goods (Subject to Spot Checks)
Goods listed under these chapters do not need mandatory pre-treatment, but undergo random inspections on arrival:
- Chapter 27: Mineral fuels, oils, and related materials.
- Chapter 28 & 29: Inorganic and organic chemicals.
- Chapter 38: Mixed chemical goods.
- Chapter 39 & 40: Plastics, rubber, and goods made from them.
- Chapter 48 & 49: Paper, cardboard, books, and printed papers.
- Chapter 56: Felt, nonwovens, twine, ropes, and cables.
3. Mixed Cargo Rules
If simple goods are packed in a container together with Target High Risk items, the whole container must meet all BMSB treatment rules.
Approved BMSB Treatment Types
When mandatory treatment is required, it must be carried out by an approved company using one of three main methods accepted by DAFF:
Overseas vs Australian Port Treatment Options
Containerised cargo, received as either Full or Less than Container Load, in Hard Sided Closed Containers may be treated either overseas or upon arrival at an approved Australian depot. However, treatment overseas by a registered company may assist in avoiding costly port delays, storage and/or container holding charges.
What is a NUFT Declaration?
A NUFT declaration stands for a New, Unused, and Not Field Tested declaration. It offers a legal way to skip seasonal treatment for qualified commercial machines and factory goods.
Key NUFT Criteria for Australian Importers
1. Allowed Chapters: The goods must fall strictly under tariff chapters 82, 84, 85, 86, 87, 88, or 89.
2. Manufacture Date: Making the finished product must start on or after 1 December of the current risk season.
3. Condition Rules: Rebuilt, second-hand, demo, or field-tested machines do not qualify for a NUFT exemption.
4. Paperwork: Importers must show an official NUFT Manufacturer’s Declaration printed on the maker’s official letterhead. The paper must state the exact date production started and state that the goods were not field tested.
Step-by-Step Action Plan for Australian Importers
Managing biosecurity rules takes good planning ahead of time. Use this simple action plan to protect your shipments during the stink bug season:
1. Check Your Supply Chain Origins
Find out where your goods are made, packed, or loaded onto ships. If your cargo passes through a target risk country during the 1 September to 30 April window, seasonal rules apply.
2. Check Approved Treatment Providers
If treatment is conducted overseas, ensure your overseas treatment provider is registered on the official AusAEI (Offshore Treatment Providers Scheme) website. Treatment conducted by an unapproved overseas provider will be rejected by DAFF, resulting in re-treatment on arrival or vessel re-export.
3. Track the 120-Hour Post-Treatment Window
For cargo treated before 1 December, goods packed in to a ship or sealed inside a hard sided container must be packed or loaded within 120 hours after treatment date. Ensure your freight forwarder is monitoring this time frame to ensure your treatment certificate remains valid.
4. Work with an Experienced Logistics Team
Working with an experienced international freight manager like AGC Global ensures your cargo papers, customs filings, and biosecurity forms are handled correctly before your ship reaches Australia.
Frequently Asked Questions (FAQs)
When is BMSB season in Australia for 2026–27?
The 2026–27 BMSB risk season applies from 1 September 2026 to 30 April 2027 inclusive. Target goods shipped on a ship departing a target risk country within these dates must follow all biosecurity rules.
Which countries are BMSB target risk countries?
DAFF lists 39 target risk countries, mostly across Europe and North America, including the USA, Canada, Germany, France, Italy, and the UK. Emerging risk nations like China, Japan, and Korea also face extra checks.
What goods need BMSB treatment?
Target high-risk goods need mandatory treatment. These include timber, cork, carpets, glass, iron, steel, metals, machinery, vehicles, and tools under tariff chapters 44, 45, 57, 68–70, 72–83, and 84–89.
What is a NUFT declaration?
A NUFT (New, Unused, and Not Field Tested) declaration lets qualifying machines under chapters 82 and 84–89 skip treatment. Goods must be made on or after 1 December and have a valid maker statement.
Can break bulk cargo be treated onshore in Australia?
No, all target high-risk goods shipped as break bulk, flat rack, or open-top cargo must undergo treatment overseas before arrival. Untreated break bulk is refused entry and sent back overseas.
What happens if my shipment fails BMSB compliance?
Non-compliant shipments face bad delays. Container cargo may undergo costly local treatment, while untreated break bulk or bad overseas treatments are ordered out of Australia at your expense.
Secure Your Supply Chain with AGC Global Australia
Following complex biosecurity laws should not put your business at risk of costly port delays or return penalties. At AGC Global Australia, our team of customs clearance specialists and global freight experts keep your shipping lines running smoothly throughout the stink bug season.
Whether you need help checking overseas treatment certificates, lodging NUFT declarations, or booking hassle-free sea freight, we deliver smart solutions built for Australian importing rules.
Ready to streamline your imports for the 2026–27 season?
Contact the freight team at AGC Global Australia today for helpful biosecurity advice and competitive sea freight quotes.