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WSLH Proficiency Testing (WSLH PT) offers a full range of CMS-approved Proficiency Testing programs to assist laboratories in meeting certification requirements. CAP has accepted WSLH PT as a proficiency testing alternative allowing laboratories to maintain their CAP accreditation while participating in WSLH PT programs. A wide range of PT products and services are available to help satisfy requirements for POCT, unregulated analytes, competency assessment, and other quality assurance activities. Our dedicated customer service staff provide rapid response to your inquiries. A team of experienced laboratory professionals are readily available for consultation. Other services offered include: linearity and assayed samples, remedial PT events, online training and competency. WSLH Proficiency Testing is affiliated with the University of Wisconsin-Madison and a proud supporter of public health.