CLIA certificate verification
CLIA lookup with expiration date
As of 2026-07-17, the official CMS QCOR CLIA directory publishes the date each listed certificate expires and says the directory is updated weekly. Search the lab's 10-character CLIA number there for the expiration date; use SourceCheckHealth for imported identity, source-freshness, and certificate/status context when available.
Expiration field
CMS QCOR
QCOR says its CLIA directory includes the date the listed certificate expires.
Directory cadence
Updated weekly
Read the QCOR data-source date with the result instead of assuming a cached page is current.
Local data limit
No expiration field
The imported POS model has lab identity plus certificate/status context, not a dedicated expiration date.
Official lookup path
How to find a CLIA certificate expiration date
- 1. Confirm the identifier. Use the exact 10-character CLIA number when possible; QCOR also accepts facility, state, city, ZIP, or lab-director fields.
- 2. Search active labs in QCOR. Open the official CMS directory and match the facility name and address before reading the certificate fields.
- 3. Record the source date. Capture the certificate type, expiration date, QCOR data-source date, and the date you performed the check for the review trail.
Two-year cycle
How long is a CLIA certificate effective?
All five CLIA certificate types are effective for two years, according to the CMS CLIA Certification guide. The lab must maintain the appropriate certificate and fees, and nonwaived labs may also have survey or accreditation steps. Use the specific QCOR expiration date rather than calculating an estimated date from a generic two-year interval.
Field provenance
Which source shows each CLIA field?
This comparison separates imported fields from the live official-directory field, so a local lab row is not mistaken for a current expiration-date verification.
| Field | SourceCheckHealth | CMS QCOR |
|---|---|---|
| CLIA number and lab identity | Shown when the imported CMS POS row is available | Shown in the current active-laboratory directory |
| Certificate type and status context | Shown only when present in the imported source row | Current certificate type and active-directory context |
| Certificate expiration date | Not a dedicated imported field | Published for the listed certificate |
| Freshness signal | Local import timestamp and source status | Directory updated weekly |
Interpretation limit
An expiration date is not a complete status decision
QCOR's public search is for active CLIA laboratories, but a future expiration date alone should not be treated as legal clearance, licensure verification, or complete credentialing. Confirm the current QCOR record, certificate type, facility identity, and any applicable State Agency or Accreditation Organization requirements before acting.
Continue verification
Start with the CLIA number
Open the local CLIA lookup to confirm imported lab identity and source freshness, then use the official QCOR directory for the current certificate expiration date.
date_retrieved: 2026-07-17. Sources checked: CMS QCOR CLIA laboratory directory, CMS CLIA Certification guide, and CMS Provider of Services clinical-laboratory dataset. SourceCheckHealth does not provide CLIA certification, licensure verification, complete credentialing, or a final compliance decision.
FAQ
Practical notes
How do I do a CLIA lookup with an expiration date?
Open the official CMS QCOR CLIA laboratory directory, search by the 10-character CLIA number or facility details, and review the certificate-expiration field on the result. QCOR says its directory includes the date the certificate expires and is updated weekly.
Does a CLIA certificate lookup show the expiration date?
The official CMS QCOR directory shows the date a listed active CLIA certificate expires. SourceCheckHealth's imported CMS Provider of Services row does not expose a dedicated expiration-date field, so use the local record for identity and source context and QCOR for the current expiration date.
How long is a CLIA certificate effective?
CMS says all five CLIA certificate types are effective for two years. The laboratory must maintain the appropriate certificate and fees, but the date for a specific lab should be read from its current QCOR record rather than estimated from a generic two-year interval.
Does a future CLIA expiration date prove the certificate is active?
Do not treat the printed date by itself as final clearance. QCOR searches active CLIA laboratories, and CMS directs certificate-status questions to the appropriate State Agency or Accreditation Organization. Verify the current QCOR record and any state or accreditation requirements before acting.