At Australian Customs Brokers & Logistics (AUSCUS), one of the most preventable (and expensive) problems we deal with is used machinery arriving in Australia in a contaminated state. The machine looks fine in the listing photos, the purchase is done, freight is booked—then quarantine inspection finds soil, seeds, plant matter, or residue lodged in hard-to-see areas. From that point, the importer is no longer in control of the timeline or the cost.

 

Here’s the simple rule we advise every importer to follow:

 

Do not ship used machinery to Australia unless your supplier has cleaned it to a quarantine-ready standard.

 

Even then, you should be prepared for the reality that Australian biosecurity may still direct cleaning on arrival. But the cleaner the machine is offshore, the lower the risk of delays, the lower the cleaning bill in Australia, and the lower the chance of the worst-case scenario: re-export. However, it’s important to note that the responsibility will always lay with the importer, regardless of what the supplier did or did not do. Any cleaning or re-export costs will always be borne by the importer.

 

Why Australia is so strict on “dirty” machinery

 

Used machinery—especially equipment that has operated on farms, construction sites, mines, timber yards, or earthmoving environments or just sat in warehouses or yards for long periods of time —can carry biosecurity risk material. The main (but not limited to) culprits are:

 

soil, clay, mud, insects, animals (yes, we have seen this before!) and gravel (especially in tracks and undercarriage cavities)

seeds and plant fragments trapped in frames and guards

organic residue inside trays, buckets, or implements

nests, insects, and animal material in engine bays and compartments

 

These contaminants are not treated as “minor dirt.” They can carry pests and diseases Australia works hard to keep out. That’s why imported machinery is routinely inspected, and why contamination triggers compulsory directions.

 

The two outcomes you want to avoid: big cleaning bills and re-export

 

When used machinery arrives dirty, quarantine can direct one of several outcomes. In practical terms, it usually means:

 

1) Mandatory cleaning in Australia (at your expense)

 

Even if your machine is “mostly clean,” low-level contamination can still trigger additional cleaning at an approved site. The costs are yours, and the machine may sit until cleaning and re-inspection is completed.

 

2) Re-export if it’s excessively contaminated

 

If the machinery arrives in a heavily contaminated state, quarantine can determine that it is not acceptable for entry and direct it to be exported from Australia. That outcome is financially brutal: freight, storage, and demurrage can climb rapidly, and it can wipe out the economics of the whole import.

 

The message is blunt because it’s true: if quarantine deems it too dirty, they can make you send it back.

 

The reality: quarantine will most likely still clean it—so your goal is to minimise the damage

 

Even when your supplier does a good job, it’s common for Australian quarantine to still require some level of cleaning, simply because their inspection is detailed and they may find contamination in concealed areas.

 

But here’s what we see in practice:

 

If the supplier cleans properly offshore, the machine is far more likely require minimal cleaning.

If the supplier does a “quick wash” and hopes for the best, the machine is far more likely to incur major cleaning costs and delays—or re-export risk.

 

So the goal isn’t “no cleaning in Australia.” The goal is to reduce the cleaning scope and reduce the risk.

 

What “clean enough” actually means (and why suppliers get this wrong)

 

Many suppliers clean machinery like they’re preparing it for sale: they clean visible external surfaces so it looks good. Quarantine inspections don’t work that way.

 

Quarantine focuses on contamination traps—areas where soil and seeds (just to name a couple) lodge and stay lodged. These are the main areas that need thorough cleaning:

 

tracks, rollers, sprockets, and undercarriage frames

belly plates, guards, chassis rails, and hollow sections

wheel rims, hubs, brake areas, and dual-wheel gaps

engine bay ledges, battery trays, radiator frames, and vents

cabin floors, under mats, seat folds, and compartments

pivot points, joints, attachment couplings, and recessed frame edges

buckets, trays, implements, and any area that has carried soil/organic material

 

If your supplier cleans only the exterior panels, you’re still exposed.

 

The best tool you can use: DAFF’s Machinery Cleaning Guide and Checklist

 

Australia’s Department of Agriculture, Fisheries and Forestry (DAFF) provides Machinery Cleaning Guides and Checklists specifically to help importers and offshore cleaners meet Australian import expectations.

 

This is what we recommend you do immediately:

 

Download the relevant DAFF cleaning guide/checklist for your machinery type

Send it to your supplier and require cleaning to that checklist

Use the checklist as a sign-off document before the machine is packed

 

DAFF Machinery Cleaning Guides and Checklists

 

These guides include pictorial examples of contamination hot spots and are the closest thing to a “common language” you can use with offshore suppliers.

 

What we advise clients to request from suppliers: the “photo pack” that prevents surprises

 

If you want to reduce risk, don’t accept “it’s cleaned” as an answer. Require proof.

 

We recommend requesting a dated photo pack that includes:

 

full machine photos from all sides

close-ups of undercarriage/track frames and inside cavities

wheel rims, hubs, brake areas, and inside guards

engine bay (including ledges, trays, and lower areas)

cabin interior, floors, and under mats

implements/buckets/trays from multiple angles

any hollow sections, channels, and areas known to trap soil

final photos taken immediately before packing/loading

 

The more evidence you have, the easier it is to catch problems before the machine is on the water.

 

A practical “clean and protect” instruction you should give your supplier

 

Offshore cleaning is not only about washing. It’s also about preventing re-contamination.

 

We recommend giving your supplier these instructions:

 

Clean to the DAFF checklist standard (not just visible surfaces)

Remove grease and oil build-up where dirt can stick

Allow machinery to dry properly

Store machinery in a clean area after cleaning (not on bare soil, not in mud)

Load machinery in clean conditions and protect it during transport where possible

 

Re-contamination between cleaning and loading is one of the most common reasons a machine that “was cleaned” arrives dirty.

 

How AUSCUS helps: reduce quarantine risk before the shipment departs

 

If you’re importing used machinery, the best time to get advice is before it ships, not after it arrives.

 

At AUSCUS, we help importers build a simple process that prevents costly outcomes:

 

we provide the DAFF checklist link and photo requirements for suppliers

we will assist with communication with suppliers to make sure they understand their obligations

we help you structure the documentation and arrival plan so you’re not scrambling on the wharf

 

If you’re planning a used machinery import contact AUSCUS before you commit to the purchase, so that we can work with you and help you to decide if the purchase is right for you.