CDC Retired Form 50.34: A Specimen Submission Cutover Checklist

November 10, 2026 | Laboratory submission readiness and specimen operations

What changed: The U.S. Centers for Disease Control and Prevention retired its 50.34 Specimen Submission Form application on October 30, 2026. CDC now identifies the Specimen Test Order and Reporting (CSTOR) Web Portal as its preferred method for infectious-disease specimen submissions.

This change is relevant to public-health laboratories and eligible original or intermediate submitters—including some hospitals, commercial laboratories, universities and other non-state organizations that send specimens to CDC with State Public Health Laboratory approval. It does not mean that every clinical-trial specimen or central-lab shipment belongs in CSTOR. The operational question is narrower: does any active protocol, referral pathway or exception procedure send specimens to a CDC infectious-disease laboratory, and is that route ready for the new submission workflow?

What CSTOR changes operationally

CSTOR combines several steps that teams may previously have handled across a local form application, email and separate shipment paperwork. CDC says the portal can support test-order requests, specimen-data submission, shipping manifests and packing slips, status monitoring, user administration and access to certain reports.

For original submitters, onboarding is not simply an individual user registration. CDC’s CSTOR Original Submitter Onboarding process involves the relevant State Public Health Laboratory, followed by Secure Access Management Services access. CDC also requires an organization to maintain at least two active Laboratory Administrators.

A six-step cutover checklist

1. Find every workflow that still references Form 50.34

Search laboratory manuals, study-specific laboratory plans, referral instructions, courier work instructions, shipping templates, training decks and exception playbooks. Flag any step that tells a site or laboratory to install, complete or transmit the retired application.

2. Confirm which organization is the approved submitter

Identify whether the specimen is submitted by a State Public Health Laboratory, federal organization, international organization or an eligible original submitter. CDC states that original submitters need the associated State Public Health Laboratory’s approval unless a test order has been pre-approved in CSTOR. Record the submitting organization and approval owner in the route instruction.

3. Verify access before a specimen is collected

Confirm that onboarding is complete, at least two Laboratory Administrators are active, required users can reach CSTOR through SAMS, and access is not dependent on one person. Test the login and user-management path before an urgent submission is needed.

4. Map the approval-to-shipment sequence

Some test-order requests are auto-approved; others require pre-approval. CDC instructs submitters to wait for approval before entering specimen information for requests that require it. Build the sequence into the pickup plan: test-order request, approval, specimen data, package documentation, shipping label, handoff and status monitoring.

5. Define the urgent fallback without treating it as the default

CDC says the Global File Accessioning Template remains available for urgent submissions by public-health organizations not already onboarded to CSTOR. That is a limited contingency, not evidence that every private or clinical-trial laboratory can bypass onboarding. Confirm eligibility and current instructions with CDC or the relevant public-health laboratory before relying on it.

6. Keep the physical shipment synchronized with the digital record

The portal transition does not replace specimen-specific collection, temperature, packaging, dangerous-goods, labeling, arrival-day or chain-of-custody requirements. Match the CSTOR order, manifest or packing slip to the specimen identifiers and package actually released to the courier. Use the current CDC Test Order Directory for test-specific instructions and contacts.

Decision framework for clinical and central-lab teams

• No CDC referral in the protocol or exception path: document that CSTOR is not part of the routine lane; do not redesign unrelated shipments.
• CDC referral exists and the organization is onboarded: validate users, administrators, approval steps and package-document generation.
• CDC referral exists but onboarding is incomplete: coordinate with the State Public Health Laboratory and CSTOR team before collection or dispatch.
• An urgent eligible public-health submission arises: confirm whether the GFAT contingency applies and identify the decision owner; do not assume.
• Digital approval or package data does not match the physical specimen: hold the release and resolve the discrepancy through the qualified laboratory and submission contacts.

What a useful readiness review produces

The practical output is a one-page route decision sheet: eligible submitter, State Public Health Laboratory relationship, CSTOR access owners, test-order approval type, specimen-data owner, package-document owner, courier cutoff, temperature requirement and escalation contact. That turns a portal cutover into an executable specimen workflow without overstating its scope.

Parsed One helps clinical-trial logistics and laboratory teams connect regulatory, transportation and disruption signals to operational decisions. Explore the Parsed One Insights hub, visit Parsed One, or request a clinical-logistics demonstration.

Primary sources

• CDC: Specimen Submission Form retirement and urgent GFAT contingency
• CDC: CSTOR Web Portal overview, users and onboarding
• CDC: CSTOR Original Submitter Onboarding
• CDC: Current specimen-submission requirements

Operational information only. Confirm test-specific submission, biosafety, dangerous-goods, privacy, packaging and transport requirements with CDC, the applicable public-health laboratory and qualified compliance specialists.