Tiered trust levels for organizations implementing NHID-Clinical.
The NHID-Clinical Certification Framework provides three progressive trust tiers for AI voice systems operating in B2B healthcare administrative workflows. Certification is voluntary and additive — L2 requires L1, L3 requires L2.
Certification does not create legal obligations. It signals operational commitment to the NHID-Clinical control baseline and provides a common language for payer procurement teams evaluating AI voice vendors.
What it means: The system passes all five Conformance Test Suite (CTS) tests under controlled evaluation conditions.
Who it’s for: Any organization deploying an AI voice agent in B2B healthcare administrative workflows. L1 is the entry point — the minimum bar for claiming NHID-Clinical alignment.
Requirements:
| Requirement | Detail |
|---|---|
| CTS Completion | All five tests (IDG-01, PDX-01, DBC-01, EIT-01, ATR-01) passed |
| Testing Method | Internal QA team self-attestation |
| Evidence Package | Signed declaration of conformance with test results |
| Audit Logs | Tier 1 structured logs present and verifiable |
| System Prompt Version | Current system prompt / call script version documented |
Declaration Statement (self-attestation):
“We certify that [System Name], version [X.X], has been evaluated against the NHID-Clinical v1.3 Conformance Test Suite and has passed all five required tests. Evidence is retained on file and available upon request.”
Badge:

What it means: The system maintains CTS conformance in production, with structured evidence of ongoing operational compliance.
Who it’s for: Organizations with active deployments handling significant call volume, or those seeking to demonstrate compliance to payer procurement teams.
Requirements (all L1 requirements plus):
| Requirement | Detail |
|---|---|
| Production Evidence | Tier 1 audit logs from minimum 30 days of live operation |
| Disclosure Failure Rate | DFR < 2% demonstrated over production period |
| Escalation Compliance | EIT-01 passing rate ≥ 99% in production sample |
| Tier 2 Evidence | First-60-second audio transcripts or recordings available for sample review |
| Policy Version Control | System prompt / call script version history documented with timestamps |
| Review Submission | Evidence package submitted to NHID-Clinical maintainer for review |
Badge:

What it means: Full independent verification of CTS conformance and operational evidence by a qualified third-party auditor.
Who it’s for: Enterprise vendors seeking formal certification for payer procurement, healthcare system deployments, or regulatory-adjacent contexts.
Requirements (all L1 + L2 requirements plus):
| Requirement | Detail |
|---|---|
| Independent Audit | Third-party auditor (qualified compliance professional or firm) conducts CTS evaluation |
| Auditor Attestation | Signed auditor declaration included in evidence package |
| Production Monitoring | Continuous or periodic sampling of production calls against CTS thresholds |
| Tier 3 Analytics | Disclosure Failure Rate, Escalation Loop Frequency, and Call Termination Rate tracked and reported |
| Registry Listing | Organization listed in NHID-Clinical registry when available (v1.4+) |
| Annual Renewal | L3 certification expires after 12 months without renewal evaluation |
Badge:

| Requirement | L1 Baseline | L2 Operational | L3 Enterprise |
|---|---|---|---|
| CTS all 5 tests passed | ✅ | ✅ | ✅ |
| Self-attestation declaration | ✅ | ✅ | ✅ |
| Production evidence (30+ days) | ❌ | ✅ | ✅ |
| DFR < 2% in production | ❌ | ✅ | ✅ |
| Tier 2 audio evidence | ❌ | ✅ | ✅ |
| Evidence package review | ❌ | ✅ | ✅ |
| Independent third-party audit | ❌ | ❌ | ✅ |
| Tier 3 analytics reporting | ❌ | ❌ | ✅ |
| Registry listing (v1.4+) | ❌ | ❌ | ✅ |
| Annual renewal required | ❌ | ❌ | ✅ |
Note: The L3 formal review process is being defined as part of the v1.4 roadmap. Early adopters interested in L3 pilot certification should contact validation@nhid-clinical.org.
NHID-Clinical · Author: Brianna Baynard · CC-BY 4.0 · v1.3 · 2026