United States Drug Enforcement Administration

This document is an internal Drug Enforcement Administration quality system document which provides a summary sheet for validated qualitative method (GUARDS). The document is updated periodically and is current as of March 11, 2024, and is provided for informational purposes only. Any sensitive, privileged or otherwise protected information has been redacted, to include the redaction of some documents in their entirety. All redactions are clearly present in this document. Names of commercial manufacturers are provided for identification only, and inclusion does not imply endorsement by the Drug Enforcement Administration.