Nexus Standards · Adoption and implementation
Open standards for any sector and jurisdiction
Adopt and implement the Nexus Standards
The Nexus Standards may be read, implemented and adapted without charge: standards text, registries, schemas and data are published under CC BY 4.0, and reference code and tests under Apache-2.0. Every normative requirement can be implemented on infrastructure chosen by the implementer, without reliance on any service operated by the programme, and national adoption remains a sovereign decision. This page describes how to obtain the standards, validate an implementation and adopt the standards in a national or organisational context.
Summary
- Standards text, registries, schemas, dataCC BY 4.0
- Reference code and testsApache-2.0
- ContributionsDCO sign-off, same licences
- Names and marksNot licensed
Nexus Standards · proposed
Obtaining and validating the standards
The public repository contains the standards, registries, schemas and reference tools. All validation runs offline.
| Step | Command | What it does |
|---|---|---|
| 1 | git clone https://github.com/gcri/nexus-standards | The standards, registries, schemas, catalog and tools |
| 2 | npm ci | Installs the pinned tooling |
| 3 | npm run check | Validates every registry and schema, runs the tests and verifies the generated files |
| 4 | npm run uni | Allocates and checks UNIs (Unique Nexus Identifiers) under NS-1 for the implementer's own records |
| 5 | npm run build | Builds the machine exports, the catalogue and the release manifest |
Population, settlement and hazards in Southeast Asia
The map frames Southeast Asia as an example geography for national and institutional adoption; the frame gives context and is not a statement of where the standards apply. Shown at first: population density, 2020 (Gridded Population of the World v4.11, NASA SEDAC, CIESIN, Columbia University) and night-time lights, daily (VIIRS Black Marble, VNP46A2, NASA LAADS DAAC). The layer drawer adds flood water, 3-day composite (VIIRS Global Flood Product); active fires and thermal anomalies, last day (VIIRS NOAA-20 375 m, FIRMS); and true colour (VIIRS NOAA-20 corrected reflectance). NASA products are served through NASA GIBS under NASA's open data policy, with acknowledgement; population density is GPW v4.11 by CIESIN, Columbia University, under CC BY 4.0; coastlines, boundaries and place names come from NASA GIBS reference layers (© OpenStreetMap contributors, ODbL) and Natural Earth (public domain). Each layer shows its own observation date; full credits are given under the map.
The interactive map needs JavaScript; the layer list and sources are below.
Layers 2
People and hazards
Keyboard, with the map focused
Hold Ctrl or ⌘ and scroll to zoom
Latest available
NASA GIBS / EOSDIS · ASTER GDEM (METI, NASA) · Blue Marble (NASA) · © OpenStreetMap contributors (ODbL) · Natural Earth
Loading the latest NASA imagery.
Drag to move. Ctrl or ⌘ and scroll, pinch or the buttons to zoom; hover for the values under the pointer; reset returns to the region.
Where people live, night-time lights and the floods and fires public institutions answer to, framed on Southeast Asia.Satellite and model products as NASA publishes them, each with its own date; indicators, not assessments of any place.
Data: NASA GIBS · ASTER GDEM · Blue Marble · © OpenStreetMap contributors · Natural Earth · NASA EONETSources and licences
- We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
- We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
- Center for International Earth Science Information Network (CIESIN), Columbia University. 2018. Gridded Population of the World, Version 4 (GPWv4): Population Density, Revision 11. NASA Socioeconomic Data and Applications Center (SEDAC). Licensed under CC BY 4.0. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). doi:10.7927/H49C6VHW. CC BY 4.0
- VIIRS Black Marble night-time lights, NASA Goddard Space Flight Center; distributed by the NASA Level-1 and Atmosphere Archive and Distribution System (LAADS DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
- VIIRS near-real-time products (flood, land surface temperature, snow cover, corrected reflectance), NASA LANCE; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
- NASA Fire Information for Resource Management System (FIRMS), VIIRS 375 m active fire product, NASA LANCE; vector tiles via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
- ASTER GDEM is a product of METI and NASA (ASTER Global Digital Elevation Model V003, NASA LP DAAC); imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). Cite as: NASA/METI/AIST/Japan Spacesystems and U.S./Japan ASTER Science Team (2019). ASTER Global Digital Elevation Model V003. doi:10.5067/ASTER/ASTGTM.003. NASA open data
- Made with Natural Earth. Free vector and raster map data @ naturalearthdata.com. Public domain
- © OpenStreetMap contributors (ODbL), via NASA GIBS (coastlines, boundaries, roads and place names). Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). ODbL
- Blue Marble, NASA Earth Observatory; imagery via NASA GIBS. Colours redrawn from the published colour map; values averaged into H3 cells where shown (modified). NASA open data
- Context on the globe and flat map: coastlines, boundaries, roads and place names from NASA GIBS reference layers (OpenStreetMap data, ODbL, © OpenStreetMap contributors); Blue Marble imagery as an optional base; 3D terrain and the elevation read-out from the ASTER GDEM elevation colour index (5 m to 200 m classes, exaggerated for legibility). Boundaries are drawn as published and imply no position on any territory.
- Globe: MapLibre GL JS 6.9.1, BSD-3-Clause, © MapLibre contributors.
- Live: NASA EONET Events are indicative, not authority warnings.
- NASA GIBS: We acknowledge the use of imagery provided by services from NASA's Global Imagery Browse Services (GIBS), part of NASA's Earth Science Data and Information System (ESDIS).
- Optional layers (3 sources in the layer list: live, forecast, observed and context) print their provider credit on the map and here when switched on; forecasts are model output and derived indices are estimates.
Layers and dates
- Population density, 2020: Population: CIESIN, Columbia University, Gridded Population of the World v4.11 (2018), NASA SEDAC, CC BY 4.0 · static
- Night-time lights, daily: VIIRS Black Marble (VNP46A2), NASA LAADS DAAC · 12 Oct 2026
- Flood water, 3-day composite: VIIRS Global Flood Product, NASA LANCE · 14 Oct 2026
- Active fires and thermal anomalies, last day: VIIRS NOAA-20 375 m (FIRMS), NASA LANCE FIRMS · 13 Oct 2026
- True colour: VIIRS NOAA-20 corrected reflectance, NASA LANCE · 13 Oct 2026
Repository structure
| Folder | Holds | Licence |
|---|---|---|
| standards/ | NS-0 to NS-16 and every NRS document | CC BY 4.0 |
| registry/ | Risk standards, programme areas, governance, participation, jurisdictions and the Nexus Hazard Standard (NHS-1) | CC BY 4.0 |
| schemas/ | JSON Schemas for records and profiles | CC BY 4.0 |
| catalog/ | The catalog of records with UNIs | CC BY 4.0 |
| tools/ and test/ | Validators, UNI tooling, builders and tests | Apache-2.0 |
National adoption modes
In each country, the National Standards Council of the National Nexus Consortium decides whether and how a standard is adopted, in consultation with the competent national authorities through its public-authority liaison. A national decision is final for that jurisdiction; the Global Standards Council has no veto over a national adoption, adaptation or decision not to adopt. National law and national-language editions prevail.
| Mode | What it means | How it is stated |
|---|---|---|
| Adopt as is | Adopts a Nexus Standard unchanged, citing its UNI and version. | Adopted in <country> as NS-n vX |
| Adopt with a profile | Adopts with a national application profile (NS-16): context segments, required clauses, a jurisdiction crosswalk entry, languages. Additive only. | Adopted in <country> with national profile <UNI> |
| Adapt | Issues a national derivative standard under its own identifier, mapped clause by clause to the Nexus Standard. | National standard derived from NS-n vX; mapping <UNI> |
| Reference only | Uses the standard as a reference. | Referenced |
Entry points by audience
| Audience | Start with | Pages |
|---|---|---|
| Developers and data engineers | Obtain the repository, run the validators, allocate UNIs and implement the schemas; every requirement is published as data with tests. | The UNI and the resolver NS-1 Resources and tooling |
| Registry and data operators | Publish catalogue records with UNIs, provenance and licence information, and resolve them through a persistent resolver. | NS-3 NS-7 Open infrastructure |
| Policy makers, regulators and supervisors | Reference requirements by clause number, adopt with a national application profile, and use conformance attestations as evidence in supervisory and policy processes. | NS-10 NS-16 Governance |
| Industry and sectors | Apply the sector and hazard profiles, model the operating context, and attest conformance clause by clause. | NS-11 NS-14 Which standards apply |
| National authorities and host institutions | Engage through the National Nexus Consortium: its National Standards Council decides adoption with the competent authorities, its National Leadership Council provides leadership, and its National Working Groups conduct national inputs and field exercises. | Field exercises Ways in Contact |
| Researchers and educators | Contribute methods, validation studies and test vectors, and teach the standards through Risk Academy disciplines. | The risk standards Develop a standard |
Liaison and alignment
The programme seeks liaison with the technical committees and consortia whose instruments it references, among them ISO/TC 262 (risk management), ISO/TC 292 (security and resilience), ISO/IEC JTC 1/SC 42 (artificial intelligence), ISO/IEC JTC 3 (quantum technologies), ISO/TC 207/SC 7 (greenhouse gas and climate change management), the Open Geospatial Consortium, the World Wide Web Consortium and the World Meteorological Organization. Crosswalks are offered back to those bodies under open licences, and clause formats are aligned with the ISO and IEC SMART programme for machine-readable standards so that Nexus records can point to machine-readable editions of the source standards as they become available.
Citation and attribution
Nexus Standards, GCRI Canada (Global Centre for Risk and Innovation), Secretariat, <title>, <UNI>@<version>, CC BY 4.0, https://github.com/gcri/nexus-standards. Names and marks of the Nexus Standards are not licensed by these licences; names of other standards bodies and their standards belong to their stewards.
Risk Academy courses and disciplines
4 courses and 4 disciplines of Risk Academy (risksacademy.com) that teach the knowledge and methods of adoption of the Nexus Standards. Each course lists its level, stream and learning hours.
Courses
Disciplines
The correspondence between courses, disciplines and the Nexus Standards is maintained with Risk Academy and is subject to its academic review.
Support for adoption across the network
GCRI Canada, The Global Risks Forum (GRF), The Global Risks Alliance (GRA) and Risk Academy work on the adoption of the Nexus Standards in distinct roles (research and evidence; governance, policy and convening; capital, finance and markets; education and training). Each entry states why it corresponds and the step it offers; each institution sets its own terms of participation.
Research and evidence
GCRI Canada
Research programmes that produce the observations, models and assessments these records describe.
Nexus AgencyProvides competence-based technical assistance to institutions that hold a mandate for risk and resilience work, under written scope and supervision.Apply to this programme Systemic Risk ManagementDevelops enterprise and public risk practice, the setting in which an institution integrates the standards into its own risk processes.Apply to this programme therisk.globalAll programmes of GCRI CanadaGovernance, policy and convening
The Global Risks Forum (GRF)
Tracks that convene public authorities, researchers and institutions on the governance of shared risks.
Policy NexusConvenes public administrations on risk-informed policy and implementation, the work that national adoption decisions draw on.Join this track Governance NexusExamines institutional capability and decision rights, the conditions under which an adopting institution assigns responsibility.Join this track globalriskforum.comAll tracks of The Global Risks ForumCapital, finance and markets
The Global Risks Alliance (GRA)
Industry programmes in which financial institutions build a shared understanding of systemic risk.
Financial Regulation NexusCompares prudential and conduct frameworks, the context in which supervised institutions read voluntary standards.Join this programme Development Finance NexusWorks on country programme readiness and safeguards, where national adoption meets the preparation of investment.Join this programme globalriskalliance.comAll programmes of The Global Risks AllianceEducation and training
Risk Academy
Courses and disciplines that teach the knowledge and methods practitioners need to apply these standards.
Policy and GovernanceRAN-307 · Intermediate · 21.5 learning hoursHow institutions, laws and people decide about risk, and how to tell whether policy worksTake this course Resilience Building 101RAF-102 · Introductory · 19.5 learning hoursConcepts, measures and investments that help people, infrastructure and organisations withstand and recover from shocksTake this course Technology and DataRAT-204 · Intermediate · 19 learning hoursManaging risk data, AI, digital infrastructure and technology risk responsiblyTake this course All courses and disciplinesListed in the education and training section of this pageQuestions and answers.
Is there a charge for implementing the Nexus Standards?
Is any programme service required to implement a standard?
How is conformance demonstrated?
Contribute to Nexus Reports from this page.
Nexus Reports is the Consortium's quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.
- GatewayGW-STDSend it from this pageEvidence, a correction, a case, a method, a review, a translation or profile input. It arrives tagged with this page, so the editor who owns it receives it.
- ZenodoOpen depositDeposit it and submit to the communityPublish your own record on Zenodo with your ORCID iD, then submit it to the Nexus Reports community. Curators review it there; the DOI stays yours.
- Nexus ReportsGCRISee every way to contributeThe contribution types, how each is reviewed, what credit you receive, the licence and what is never accepted.
Never send personal data, sensitive infrastructure detail or anything you have no right to share. A contribution is reviewed before use; sending it confers no authorship or editorial rights, and sponsorship never buys a finding.
The same subject across the Consortium.
Around the Nexus Standards.
Take part in the standards.
Governments, regulators, standards bodies, industry, academia and communities are invited to shape the catalogue ahead of its first official release, targeted for 2030: comment on a draft, propose a change, join a working group or host a field exercise.
Status and use. The Nexus Standards are proposed standards developed through an open process under NS-13 and published for voluntary use; they do not constitute certification, accreditation or regulatory approval, and adoption remains a decision of the Global Standards Council and, in each country, of its National Standards Council. A UNI (Unique Nexus Identifier) identifies an artifact; it does not certify it. 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.
Licences: CC BY 4.0 for standards text, registries, schemas and data; Apache-2.0 for reference code. External standards are cited by name, number and link under their own licences. Third-party data, libraries and fonts keep their own licences: see Third-party notices.