Alignment with ISO/SAE 21434 & UNECE R155/R156

This page gives a non-normative mapping between China’s GB/T 44495 (cybersecurity) and GB/T 44496 (software updates) and the international ecosystem of ISO/SAE 21434 and UNECE R155/R156 (plus ISO 24089). Use it to plan process reuse and identify local adaptations for the Chinese market.

1) Conceptual Alignment

GB/T 44495 ↔ ISO/SAE 21434 & UNECE R155

Org capability: governance, roles, competence → aligns with R155 CSMS; implemented via ISO 21434 processes.
Lifecycle security: concept → decommissioning → matches ISO 21434 lifecycle and R155 expectations.
Risk mgmt. (TARA-style): assets, threats, feasibility/impact → ISO 21434 Part 8; supports R155 type approval evidence.
Supply chain: requirements flow-down, evidence exchange → mirrors ISO 21434 supplier clauses & R155 supplier coverage.
Monitoring/PSIRT: vuln intake, incident handling → complements R155 operations chapters.

GB/T 44496 ↔ ISO 24089 & UNECE R156

SUMS-equivalent: policies, roles, approvals → maps to R156 SUMS governance; engineered via ISO 24089.
Secure updates: signing, eligibility, anti-rollback → core of R156 & ISO 24089 update chain of trust.
Campaign control: canary/phased rollout, comms → consistent with R156 campaign management.
Records/traceability: per-campaign & per-VIN evidence → R156/ISO 24089 record-keeping.
Post-update validation: telemetry, acceptance criteria → R156 post-install checks.

2) Practical Mapping (At a Glance)

Cybersecurity (GB/T 44495)

Governance & policy → R155 CSMS; ISO 21434 organizational clauses.
Risk analysis & treatment → ISO 21434 TARA; informs R155 type evidence.
Design & verification → ISO 21434 concept/development; trace to tests.
Operations & PSIRT → R155 monitoring/incident; closes feedback loop.
Supplier integration → ISO 21434 supplier mgmt.; R155 supplier coverage.

Software Updates (GB/T 44496)

SUMS governance → R156 SUMS; ISO 24089 org/process controls.
Packaging & signing → ISO 24089 chain-of-trust; R156 integrity/authenticity.
Eligibility & anti-rollback → R156 campaign prerequisites and counters.
Rollout & comms → R156 campaign management.
Validation & records → R156 post-update, per-VIN logs and dashboards.

3) China-Specific Gap Considerations

Localization of processes & artifacts: translate policies, procedures, roles, and templates for CN teams and auditors.
Data residency & privacy: document where telemetry/records are stored; minimize personal data and define retention.
Connectivity & infrastructure: plan for regional networks, app stores, and backend endpoints serving China.
Supplier ecosystem: ensure local suppliers receive clear security clauses, SBOM expectations, and evidence requirements.
Authority interaction: prepare exportable evidence packs with Chinese labels/indices and stable IDs.

4) Alignment Workflow (Recommended)

Baseline: map your existing ISO 21434 / R155 / R156 / ISO 24089 artifacts to GB/T expectations.
Gaps: identify missing China-specific governance (ownership, competence records, local procedures).
Tailoring: adapt templates (TARA, requirements, test reports, campaign dossiers) with CN fields/labels.
Evidence index: create a GB/T-specific index linking to versioned artifacts and translations.
Dry run: internal audit / readiness check against the GB4449x Evidence Checklist.

5) Typical Outputs / Evidence for Alignment

Crosswalk matrix (GB/T → ISO/R155/R156/ISO 24089) with artifact pointers.
Localized CSMS/SUMS descriptions with org charts and role competence in CN context.
TARA excerpts and requirements traceability showing coverage of China-market variants.
Update chain-of-trust docs (signing policy, eligibility, anti-rollback) and campaign dossiers.
Records/retention policy indicating storage locations, access, and data minimization for China.

Disclaimer: This mapping is provided for orientation only. For authoritative requirements, consult the official GB/T standards text and applicable guidance from Chinese authorities or accredited bodies.