State Operations Manual (Pub. 100-07), Ch. 6 § 6062
Onsite Observation of Proficiency Testing
6062 - Onsite Observation of Proficiency Testing
(Rev. 230; Issued: 07-11-25; Effective: 07-11-25; Implementation: 07-11-25)
CMS/SA surveyors may elect to observe PT performance onsite as part of the survey
process or because of failure in PT by the CLIA laboratory.