CUSMA certifications of origin, done properly

Under CUSMA the certification does not have to be a prescribed government form, which makes it easier to produce and easier to produce badly. What matters is that it contains the required information and that it is true.

What the certification has to contain

CUSMA specifies a set of minimum data elements rather than a mandatory form, which means the certification can be a statement on your commercial invoice.

It identifies the certifier and their role, the exporter, producer and importer as applicable, describes the goods with their classification, states the preference criterion relied on, covers a blanket period if applicable, and is signed and dated with a certifying statement.

A certification missing a required element is one a broker may decline to rely on, which produces exactly the outcome you were trying to avoid: duty charged on qualifying goods.

Blanket certifications are usually the right answer

A certification can cover multiple shipments of identical goods over a stated period rather than being issued per parcel.

For an ecommerce brand shipping the same SKUs continuously, this is the single most useful structural change available. It converts a per-order failure point into a standing document.

It also means the certification has to be reissued when the goods or their inputs change — which is a maintenance obligation, not a one-off.

The certification is the last step, not the first

A certification asserts that the goods meet the rule of origin. Making that assertion without having done the determination is a compliance exposure that sits with you.

So the order is: classify, find the rule, trace inputs, obtain supplier declarations, determine qualification, document it — and then certify. A service that skips to the last step is selling you a document and leaving you the risk.

Then make sure it is actually used

A valid certification sitting in a folder saves you nothing. The data has to travel with each shipment and the entry has to be filed claiming preference.

Verify this from your duty invoices rather than assuming. If duty continues to appear on qualifying goods after you start certifying, the claim is failing at entry and that is a solvable conversation with your broker — but only if you are checking.