US · guidance
CMS SOM App. C, Tag D2179
§493.863 Standard: Compatibility testing
(d)(1) For any unsatisfactory testing event for reasons other than a failure to
participate, the laboratory must undertake appropriate training and employ the
technical assistance necessary to correct problems associated with a proficiency
testing failure.
(2) For any unsatisfactory testing event score, remedial action must be taken and
documented, and the documentation must be maintained by the laboratory for two
years from the date of participation in the proficiency testing event.
History
Rev. 233; Issued: 09-12-25; Effective: 09-12-25; Implementation: 09-12-25
Provenance
- Source
- cms.gov
- Retrieved
- 2026-07-22
- Edition
- som-2026-07-22
- Content hash
895ad66f69b06872f54e6a9813b9e5ec71f431ede49f2beeb26f448e8cbae31a
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