US · guidance
CMS SOM App. C, Tag D2062
§493.831 Standard: Virology
(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 events, 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
bc1b7a87feb84804b32ca118b284eb386fe84ae27a4c0ae6ee320bc2bb1c33f8
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