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Marks & treatment

Does ISPM 15 heat treatment expire after six months or a year?

By PalletChecker · AI-assisted, source-linked guidance

Reviewed 2026-10-03 · inspection required

Applies to: International standard; national programme and destination checks

Treatment and official marking do not have a routine expiry date simply because time has passed. Reuse still requires valid marks and suitable condition; repair or remanufacture changes the assessment. Customer specifications can be stricter.

What to check next

• Check alteration, contamination and destination requirements.

Sources

• APHIS: export WPM FAQ on treatment expiry

How we research and review answers

Related questions

• Can a heat-treatment certificate replace the ISPM 15 stamp?
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