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Keystone Compliance is accredited by the International Safe Transit Association (ISTA) to complete its package testing procedures. ISTA has partnered with retailers like and Sam’s Club to establish procedures relevant to their distribution system.

Keystone Compliance is accredited to ISO/IEC 17025:2005 by the American Association for Laboratory Accreditation (A2LA) for both electrical and mechanical scopes. The A2LA accreditation signifies that Keystone Compliance has met strict technical competency requirements and quality management system requirements.

ISTA Scope of Accreditation

A2LA Cert. No. 3293.02 Mechanical (Climatics/Dynamics)

ISO 17025 Accredited Lab


ISTA Certified Lab