VDSCP: List of Certified Participants

Certified manufactures are those that meet CDC’s analytical performance criteria. CDC issues certificates for each analytical system evaluated. The date used on the certificate as the “Date of Certification” indicates when the laboratory data were compiled and statistically analyzed at CDC. Certificates for manufacturers expire 1 year after their certification date.

Number of Certificates Issued to Manufacturers by Participant Type

Number of Certificates Issued to Manufacturers by Participant Type
Timeframe Total Research laboratories Clinical laboratories Assay/Kit manufacturers
Last 12 months 19 26% 32% 42%
Last 3 years 56 27% 20% 53%

VDSCP Vitamin D Certified Assays pdf icon[PDF – 282 KB]
Certifications from 2020 (Updated March 2020)

VDSCP Vitamin D Certified Procedures pdf icon[PDF – 518 KB]
Certifications prior to 2020

Page last reviewed: March 26, 2020