The Centers for Medicare & Medicaid Services (CMS) published their final rule on July 2022 including Proficiency Testing (PT) revisions. PT revisions will go into effect January 1, 2025 and will include analytes that will be CMS regulated along with revised grading criteria for existing analytes. Please refer to this 2025 CLIA changes document for more information, including the effective date, and also the implementation date of the CMS final rule. 

Most of the modules WSLH PT offers already meet these requirements. Where possible, WSLH PT will reassign laboratories using a non-waived method enrolled in a 3-sample PT module to a 5-sample PT module. Reassignments will be reflected on 2025 Enrollment Quotes sent out in September 2024. The tables below list new CMS regulated analytes with their corresponding modules and revised scoring criteria.

Further changes will be communicated closer to the implementation date of January 1, 2025. If you have any questions about the new requirements, please contact WSLH PT at 800-462-5261 or ptservice@slh.wisc.edu.

To view the new CMS-regulated analytes, revised scoring criteria for currently regulated analytes,
and microbiology changes, please visit our webpage: 
CLIA and Proficiency Testing Changes – WSLH Proficiency Testing (wslhpt.org)