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Proof of non-preferential origin: what the Turnberry deal changes

Published on 3 August 2026

Briefing note

The principle

Since 1 July 2026, certain goods of US origin benefit from reduced or nil duties. No standard supporting document is provided for: the burden of proof rests entirely on the importer.

What to retain

  • The commercial documents establishing origin
  • A description of the manufacturing process
  • All correspondence with the supplier

See Regulation (EU) 2026/1455 for the headings concerned.

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