The external standards in the crosswalk domains of agriculture and land use, from the register, with the relation each has to the Nexus Standards; every row links the source body, and relations are evidenced by attestations with their own UNIs (Unique Nexus Identifier). Names of standards bodies and their standards belong to their stewards and are used only to identify the documents; no text of an external standard is reproduced here. Nexus Standards is not affiliated with, endorsed by or certified by any standards body named here.
5 Nexus Standards · 3 domains · 22 external standards · 19 issuing bodies · 1 consumers. Relations are register entries (adopt, profile, crosswalk, cite), never compliance claims; names belong to their stewards.
Crosswalk graph50 nodes and 62 links from registry/external-standards.yaml, registry/subsites.yaml and registry/consumers.yaml. Relations (adopt, profile, crosswalk, cite) are register entries, never compliance claims.
| Standard | Body | Version | Relation | Access | Verified |
|---|---|---|---|---|---|
| Integrated Food Security Phase Classification (IPC) Technical Manual Version 3.1 | IPC Global Partners (FAO-hosted Global Support Unit) | 3.1 (August 2021) | crosswalk | free-to-read | verified |
| ISO 22000:2018 Food safety management systems | ISO/TC 34/SC 17 | 2018 | compatibility profile (restricted) | paywalled | unverified |
| Codex Alimentarius international food standards | FAO/WHO Codex Alimentarius Commission | current | cite | open | unverified |
| International Standards for Phytosanitary Measures (ISPMs) | International Plant Protection Convention | current | crosswalk | open | unverified |
Unverified entries rest on a secondary source for at least one field; the register says which.
Fig.Register relations for the area and the evidence NS-14 requires before a claim is displayed. Design, not a record.
| Standard | Body | Version | Relation | Access | Verified |
|---|---|---|---|---|---|
| IFRS S2 Climate-related Disclosures | International Sustainability Standards Board (IFRS Foundation) | issued 26 June 2023; effective 1 January 2024 | crosswalk | unknown | unverified |
| GHG Protocol Corporate Accounting and Reporting Standard | World Resources Institute and WBCSD (GHG Protocol) | Revised edition 2004; third edition under revision (progress update December 2025) | cite | open | verified |
| GHG Protocol Scope 2 Guidance | GHG Protocol | 2015; revision in progress | cite | open | verified |
| GHG Protocol Corporate Value Chain (Scope 3) Accounting and Reporting Standard | GHG Protocol | 2011; revision in progress | cite | open | unverified |
| ISO 14090:2019 Adaptation to climate change - Principles, requirements and guidelines | ISO/TC 207/SC 7 | 2019 | compatibility profile (restricted) | paywalled | verified |
| ISO 14091:2021 Adaptation to climate change - Guidelines on vulnerability, impacts and risk assessment | ISO/TC 207/SC 7 | 2021 | compatibility profile (restricted) | paywalled | verified |
| NGFS long-term climate macro-financial scenarios | Network for Greening the Financial System | Phase V (5 November 2024); explanatory notes 7 November 2025 | cite | open | unverified |
| SBTi Corporate Net-Zero Standard | Science Based Targets initiative | V1.3 baseline; V2.0 criteria document dated June 2026 (effective dates UNVERIFIED) | cite | open | verified |
| INFORM Climate Change Risk Index - Concept and Methodology | European Commission Joint Research Centre | 2022 (JRC129896) | cite | open | verified |
| IPCC AR6 Working Group II - risk framing (hazard, exposure, vulnerability, response) | Intergovernmental Panel on Climate Change | AR6 WGII (2022) | adopt | open | verified |
| GOOS Essential Ocean Variables | IOC-UNESCO Global Ocean Observing System | current | adopt | open | unverified |
| UAE Framework for Global Climate Resilience (Global Goal on Adaptation) | UNFCCC | 2023 | cite | open | unverified |
Unverified entries rest on a secondary source for at least one field; the register says which.
| Standard | Body | Version | Relation | Access | Verified |
|---|---|---|---|---|---|
| Recommendations of the Taskforce on Nature-related Financial Disclosures | TNFD | v1.0 (18 September 2023); LEAP v2.0 reported October 2026 | crosswalk | open | verified |
| Kunming-Montreal Global Biodiversity Framework | Convention on Biological Diversity | 2022 | cite | open | unverified |
| IUCN Red List Categories and Criteria | IUCN | 3.1 | adopt | open | unverified |
| IUCN Global Ecosystem Typology | IUCN | 2.0 | adopt | open | unverified |
| System of Environmental-Economic Accounting - Ecosystem Accounting | UN Statistical Commission | 2021 | crosswalk | open | unverified |
| UNCCD Scientific Conceptual Framework for Land Degradation Neutrality | UN Convention to Combat Desertification | 2017 | cite | open | unverified |
Unverified entries rest on a secondary source for at least one field; the register says which.
| Relation | Meaning | Evidence |
|---|---|---|
cite | The Nexus Standard refers to the external standard as context. | URL and identifier in the register. |
profile | The Nexus Standard constrains or specialises an open external standard (STAC, DCAT, PROV-O, DataCite, CAP). | Conformance tests against the external standard's own validator where one exists. |
crosswalk | Elements of the external standard map to Nexus elements (clauses, record fields). | A crosswalk table in the register entry; each row cites the external clause by number, never by text. |
adopt | The ecosystem uses the external standard as-is for a function (ISO 3166, SPDX, ORCID, ROR). | Validation of values against the external scheme. |
extend | Nexus adds machine-readable, real-time or provenance elements the external standard lacks. | The extension is a Nexus clause or field; the external standard is cited as the baseline. |
gap | No external standard covers the concern; Nexus specifies it. | The gap statement in the landscape study. |
Risk Academy disciplines that teach Agriculture and land use, with their courses; the GCRI Canada, The Global Risks Forum (GRF) and The Global Risks Alliance (GRA) subsites that carry those disciplines; and the Nexus Foundry systems the standards name. Mappings are proposed for review (Risk Academy standards map, 2026-10-17); a link says a page on the same subject exists, never an endorsement or a conformance statement; framework names in course titles are named and linked, never reproduced.
Every standard here is proposed. Changes enter as proposals under NS-13; conformance is shown by attestations under NS-11; nothing on this site is a certification, an approval or a readiness statement.
Nexus Standards documents CC BY 4.0 · tooling Apache-2.0 · counsel review pending (DEC-2026-10-16-NEXUS-STANDARDS-OPEN-LICENCE). External standards are named and linked under their own licences; a UNI (Unique Nexus Identifier) identifies, it never certifies. · Generated from the Nexus Standards corpus at commit 437ae044c5cb (2026-10-17); proposed and open.