List of VDSCP 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
| 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 – 322 KB]
Certifications from 2020 (Updated May 2023)
VDSCP Vitamin D Certified Procedures [PDF – 518 KB]
Certifications prior to 2020