Supply Chain Security Evidence Package Template

Use this template when assembling evidence for supplier assurance, product acceptance, customer assurance, audit readiness, update review, vulnerability response, or lifecycle monitoring.

An evidence package should make the decision, scope, artifacts, verification path, gaps, exceptions, and retention expectations visible. It replaces ad hoc evidence collection with a repeatable structure.

Template

Field	What to record
Decision supported	The decision this package supports, such as supplier selection, product acceptance, update approval, vulnerability response, audit review, repair return-to-service, transfer, or decommissioning.
Practice/control supported	The practice and control that produced or requires the evidence.
Product, service, supplier, component, release, or lifecycle scope	The exact scope covered by the package, including product/version binding where relevant.
Evidence included	Artifacts, records, claims, measurements, attestations, certificates, manifests, SBOM/xBOMs, update records, vulnerability records, lifecycle-state records, logs, or audit material.
Producer/source	The supplier, product team, manufacturer, service owner, verifier, tool, repository, or system that produced each evidence item.
Consumer/recipient	The buyer, operator, customer, auditor, assessor, product team, verifier, or relying party that will use the evidence.
Generated when	When the evidence was generated and what event produced it.
Verified when	When the evidence was reviewed or appraised.
Verification method	How origin, integrity, freshness, consistency, scope, or lifecycle relevance was checked.
Freshness/date	The date, timestamp, version, status, or review cadence that shows whether the evidence is current enough.
Known gaps	Missing evidence, unclear scope, weak provenance, stale artifacts, unsupported claims, or unresolved questions.
Exceptions/risk acceptance	Any approved exception, residual risk, compensating action, owner, review date, and rationale.
Retention owner	The team, repository, system, or role responsible for retaining and refreshing the package.
Related technology options	Mechanisms that may help produce, protect, exchange, verify, or retain the evidence.

Package quality checks

• Is the evidence tied to a decision rather than collected for its own sake?
• Is the product, supplier, component, release, or lifecycle scope clear?
• Can the recipient identify who produced each artifact and when?
• Can origin, integrity, freshness, consistency, or lifecycle relevance be checked?
• Are gaps, exceptions, and risk acceptances visible?
• Is the package retained somewhere it can be found, explained, and reused later?

Example package variants

Use the same template fields, but emphasise different evidence depending on the decision.

Supplier review package

Field	Example focus
Decision supported	Supplier selection, renewal, continued use, remediation, or rejection.
Practice/control supported	Supplier evidence requirements, supplier assurance review, contractual evidence clauses, remediation tracking.
Scope	Supplier, product or service, contract scope, critical sub-tiers, support services, and assessed version or release.
Evidence included	Supplier declarations, questionnaire responses, sub-tier declarations, dependency records, SBOM/xBOMs, vulnerability commitments, incident notification terms, remediation plans.
Known gaps	Unsupported sub-tier visibility, unavailable artifacts, stale certifications, missing product/version binding, unclear support boundary.
Retention owner	Procurement, supplier assurance, product security, or contract owner.

Product acceptance package

Field	Example focus
Decision supported	Accept, reject, quarantine, remediate, or accept with conditions.
Practice/control supported	Identity verification, provenance review, integrity/configuration check, transparency artifact review, update/vulnerability review.
Scope	Product, component, platform, firmware load, supplier-provided service, serial number, release, or deployment cohort.
Evidence included	Identity evidence, provenance records, certificate or credential issuance records, measurements or attestation results, SBOM/xBOMs, update history, vulnerability status, acceptance checklist.
Known gaps	Missing provenance, stale vulnerability status, unverifiable identity, incomplete SBOM scope, unavailable reference values, unclear update history.
Retention owner	Product owner, asset owner, acceptance authority, or lifecycle monitoring owner.

Audit or customer assurance package

Field	Example focus
Decision supported	Customer assurance response, audit response, certification preparation, internal control review, or evidence gap remediation.
Practice/control supported	Control evidence register, standards mapping review, evidence retention control, audit package preparation, exception visibility.
Scope	Standard, control, customer request, audit period, product line, supplier, lifecycle stage, or assurance claim.
Evidence included	Control-to-evidence mappings, source references, audit packs, customer assurance packs, review notes, verification metadata, exception records, remediation plans.
Known gaps	Unsupported control claims, expired evidence, unclear source reference, weak verification path, unresolved exception, missing retention owner.
Retention owner	Audit owner, compliance owner, customer assurance owner, control owner, or evidence repository owner.

Update or vulnerability review package

Field	Example focus
Decision supported	Update approval, update eligibility, deployment, rollback, vulnerability remediation, vulnerability status communication, or risk acceptance.
Practice/control supported	Update approval workflow, update eligibility check, update signing control, affected-product analysis, remediation tracking, evidence refresh.
Scope	Product, version, release, deployment cohort, vulnerability identifier, affected component, customer environment, or lifecycle state.
Evidence included	Update approvals, signing records, update manifests, installation logs, rollback evidence, affected-product analysis, VEX-like status records, remediation records, risk acceptance records.
Known gaps	Unclear affected-product mapping, missing installation logs, stale vulnerability status, unverifiable update package, unresolved remediation, unsupported rollback evidence.
Retention owner	Product security, release owner, update service owner, vulnerability response owner, or lifecycle monitoring owner.

Retention warning

Retention does not make weak evidence strong. It preserves evidence usefulness only if the original artifact, context, and verification path are meaningful.

Use this template with Evidence Repositories, Logs, and Retention when evidence needs to support later audit, renewal, vulnerability response, transfer, repair, incident review, or decommissioning decisions.

Related pages

• Evidence Checklist
• Evidence Maturity Model
• Worked Examples
• Glossary
• Audit and Compliance Readiness
• Assurance Implementation Planning