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International Seed Testing Association
International Seed Testing Association
Richtiarkade 18
8304 Wallisellen, CH
+41 44 838 60 00
International Seed Testing Association


ISTA Accreditation verifies whether a laboratory is technically competent to carry out seed testing procedures in accordance with the ISTA International Rules for Seed Testing.

Accredited laboratories must run a quality assurance system, fulfilling the requirements of the ISTA Accreditation Standard.


Accreditation can be granted for:

  • Entities performing sampling only
  • Laboratories performing testing only
  • Laboratories performing sampling and testing

The ISTA Accreditation Programme

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