Non-certified wood or fibre covered by due-diligence and traceability systems
Measurement answer
What this metric measures
Reports the proportion of non-certified wood or fibre in the supply chain that is covered by operational due-diligence and traceability systems intended to ensure responsible sourcing.
Specification
Metric specification
- Result format
- Single value
- Unit
- % — source-defined reporting unit
- Reporting basis
- Reporting period
- Aggregation
- Percentage of non-certified wood or fibre in the reporting supply-chain boundary that is covered by operational due-diligence and traceability systems
- Pillar
- Governance
- Topic
- Responsible sourcing and supply-chain traceability
- Controlled domain
- Supply chain and value chain
- Entity type
- Metric
Reporting boundary
Non-certified wood or fibre in the organization's supply chain
Verified source occurrences
Framework coverage
This is one canonical metric. The bindings below show every verified framework occurrence without creating duplicate metric pages. Edition, disclosure, role, and relationship remain source-specific.
- Adopting DisclosureSource evidence
TNFD sector guidance
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Final English sector guidance collection through August 2026 (17 documents)
- Requirement
- Not Specified
- Relationship
- Defines Disclosure
- Mapping outcome
- Direct Evidence
- Source locator
- Page 66, Additional sector metrics table, Response—Dependency, impact, risk and opportunity management: Value chain
- Adopting DisclosureFP.A22.1
TNFD sector guidance
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Version 1.0, June 2024
- Requirement
- Recommended
- Relationship
- Maps Source Identity
- Mapping outcome
- Published
- Source locator
- Page 66, Additional sector metrics table, Response—Dependency, impact, risk and opportunity management: Value chain
Value structure
Dimensions and units
- Unit
- % — source-defined reporting unit
- Reporting basis
- Reporting period
Unit meaning: Values use % under the disclosed TNFD sector-guidance method, reporting period and boundary.
Table fields and units
- material type
- supply-chain boundary
- quantity of non-certified wood or fibre
- quantity covered by due-diligence and traceability systems
- coverage percentage
- due-diligence and traceability-system description
Published dimensions
- material type: wood or fibre
- certification status: non-certified
- supply-chain boundary
- due-diligence coverage status
- traceability-system coverage status
Calculation method
Formula information
- Status
- Specified
- Formula type
- Percentage
Formula
Coverage (%) = (quantity of non-certified wood or fibre in the supply chain covered by operational due-diligence and traceability systems ÷ total quantity of non-certified wood or fibre in the supply chain) × 100.Apply the source-defined TNFD sector-guidance method within the stated reporting boundary. The candidate specifies a reportable supply-chain coverage percentage, explicit material population, and required management-system condition. It is not the same construct as the shortlist's broad supplier nature due-diligence profile, which includes multiple supplier screening, engagement, certification and implementation fields rather than this defined non-certified wood/fibre coverage ratio.
Variables
| Symbol | Variable | Definition | Unit |
|---|---|---|---|
C | Covered non-certified wood or fibre | Quantity of non-certified wood or fibre in the supply-chain boundary subject to operational due-diligence and traceability systems. | same quantity unit as T |
T | Total non-certified wood or fibre | Total quantity of non-certified wood or fibre in the supply-chain boundary. | quantity unit not specified |
P | Coverage percentage | Proportion of non-certified wood or fibre covered by due-diligence and traceability systems. | % |
Verified sources
Evidence and status sources
Sustopedia checked each record-specific claim directly against primary publisher material. Labels distinguish current measurement authority from future compatibility and corroborative, legal, edition, or method status context. Corroborative evidence can support a stated limitation but cannot establish the core measurement by itself.
Measurement evidence
- Measurement evidenceChecked 30 August 2026
TNFD additional sector guidance collection
- Publisher
- Taskforce on Nature-related Financial Disclosures
- Edition
- Final English sector guidance collection through August 2026 (17 documents)
- Locator
- Page 66, Additional sector metrics table, Response—Dependency, impact, risk and opportunity management: Value chain
Supports: The official TNFD sector guidance supports the identity, boundary and method basis of “Non-certified wood or fibre covered by due-diligence and traceability systems”.
Open official source
Use with context
Interpretation boundaries
Method disclosures required
Source-edition basis: TNFD sector guidance, Final English sector guidance collection through August 2026 (17 documents).
- Define the supply-chain boundary used.
- Define non-certified wood or fibre for the reported calculation.
- Describe the operational due-diligence and traceability systems used to establish coverage.
- Disclose whether wood and fibre are reported together or separately.
- Describe the basis used to determine that systems ensure responsible sourcing.
Record-specific limitations
- The extracted evidence does not specify whether wood and fibre are to be reported separately or combined.
- The extracted evidence does not define acceptable certification schemes or the detailed criteria for responsible sourcing.
- The extracted evidence does not specify treatment of volumes with unknown certification status.
Interpret this metric with the stated reporting boundary, period convention, value shape, and unit. Results prepared with different boundaries or conventions may not be directly comparable.
Measurement evidence supports the core record-specific claims described above. Corroborative evidence can support limitations, while compatibility and status sources provide their separately labelled context. None of these cards by itself determines an organisation's legal applicability, filing readiness, assurance status, or compliance conclusion.