GFDRR · duncandewhurst · Apr 15, 2026 · Apr 15, 2026 · Apr 15, 2026 · Apr 15, 2026
diff --git a/docs/about/changelog.md b/docs/about/changelog.md
@@ -62,6 +62,12 @@ This page lists changes to the Risk Data Library Standard.
   - Make `SimpleHazard.type` and `SimpleHazard.process` required.
   - Align `enums` with codelist CSVs.
   - Remove `Location.geometry`.
+- [#405](https://github.com/GFDRR/rdl-standard/pull/405):
+  - Make `.description` required
+  - Reorder some properties
+  - Move repeated impact properties from `Losses` and `Function` to new `Impact` definition
+  - Refactor to reduce repetition and standardise use of allOf keyword
+- [#434](https://github.com/GFDRR/rdl-standard/pull/434) - Update `Exposure_item.asset_type.scheme` description.
 
 ### Codelists
 
@@ -109,11 +115,7 @@ This page lists changes to the Risk Data Library Standard.
     - 'disruption_days'
     - 'disruption_loss'
     - 'displaced_days'
-- [#405](https://github.com/GFDRR/rdl-standard/pull/405):
-  - Make `.description` required
-  - Reorder some properties
-  - Move repeated impact properties from `Losses` and `Function` to new `Impact` definition
-  - Refactor to reduce repetition and standardise use of allOf keyword
+- [#434](https://github.com/GFDRR/rdl-standard/pull/434) - Remove 'USHS_EHP' and 'INFORM' from `classification_scheme.csv`.
 
 ### Normative documentation
 
@@ -123,6 +125,7 @@ This page lists changes to the Risk Data Library Standard.
 
 * [#429](https://github.com/GFDRR/rdl-standard/pull/429) - Add guidance on describing location-only exposure data.
 * [#431](https://github.com/GFDRR/rdl-standard/pull/431) - Update [What is the RDLS?](../rdl/what.md).
+- [#434](https://github.com/GFDRR/rdl-standard/pull/434) - Remove `guides/metadata/mappings.md` in favour of mappings documented in codelists.
 
 ## 0.2.0 - 2023-09-08
 

diff --git a/docs/guides/index.md b/docs/guides/index.md
@@ -1,13 +1,12 @@
 # Guidance
 
-This section provides guidance on how to publish RDLS metadata, guidance on how to publish risk datasets and mappings between existing risk taxonomies and RDLS.
+This section provides guidance on how to publish RDLS metadata and guidance on how to publish risk datasets.
 
 ```{eval-rst}
 .. toctree::
    :maxdepth: 2
 
    metadata
    datasets/index
-   mappings/index
 
 ```
diff --git a/docs/guides/mappings/index.md b/docs/guides/mappings/index.md
diff --git a/docs/guides/mappings/undrr_isc_hip.md b/docs/guides/mappings/undrr_isc_hip.md
diff --git a/docs/guides/metadata.md b/docs/guides/metadata.md
@@ -20,7 +20,7 @@ If you are authoring new metadata by hand or converting existing metadata from a
 
 If you are exporting existing metadata from a data catalog or database and you have access to a software developer, the suggested approach is to [export data in JSON format](#export-data-in-json-format).
 
-If your risk datasets use terms from existing taxonomies or classifications, use the [taxonomy mappings](mappings/index.md) to identify the equivalent codes in RDLS.
+If your risk datasets use terms from [EM-DAT](https://www.emdat.be/) or the [UNDRR Hazard Information Profiles](https://www.undrr.org/publication/documents-and-publications/hazard-information-profiles-hips-2025-version), use the mappings in the [hazard_type](../reference/codelists.md#hazard_type) and [process_type](../reference/codelists.md#process_type) codelists to identify the equivalent codes in RDLS.
 
 If you plan to describe the spatial coverage of your risk data using coordinates, you might need to [transform your coordinates to the correct coordinate reference system](#transform-coordinates-between-coordinate-reference-systems).
 

diff --git a/docs/rdl/other-standards.md b/docs/rdl/other-standards.md
@@ -2,7 +2,7 @@
 
 RDLS has been built based on existing open data standards.
 
-In this section you will find a short summary of the core standards upon which the RDL data model has been built. For detailed mappings between existing risk taxonomies and RDLS, refer to the [taxonomy mappings](../guides/mappings/index.md).
+In this section you will find a short summary of the core standards upon which the RDL data model has been built. For detailed mappings between existing risk taxonomies and RDLS, refer to the [hazard_type](../reference/codelists.md#hazard_type) and [process_type](../reference/codelists.md#process_type) codelists.
 
 ## General standards
 

diff --git a/docs/reference/codelists.md b/docs/reference/codelists.md
@@ -788,6 +788,8 @@ The RDLS offers a classification of hazards that are more often required in disa
 
 The hazard_type codelist classifies hazard phenomena by the main hazard to which they relate. Hazard phenomena can also be classified by the hazard process to which they relate. For more information, see the [process_type codelist](#process_type).
 
+The hazard_type codelist includes a mapping from the RDLS hazard types to the hazard categories defined in the [UNDRR Hazard Information Profiles](https://www.undrr.org/publication/documents-and-publications/hazard-information-profiles-hips-2025-version).
+
 
 ````{dropdown} Codes
 
@@ -869,8 +871,7 @@ Download CSV file
 
 ### process_type
 
-The process_type codelist classifies hazard phenomena by the hazard process to which they relate. Hazard phenomena can also be the main hazard to which they relate. For more information, see the [hazard_type codelist](#hazard_type). Process types are based primarily on the [UNDRR Hazard terminology](https://www.undrr.org/publication/hazard-definition-and-classification-review-technical-report).
-
+The process_type codelist classifies hazard phenomena by the hazard process to which they relate. Hazard phenomena can also be the main hazard to which they relate. For more information, see the [hazard_type codelist](#hazard_type). Process types are based primarily on the [UNDRR Hazard terminology](https://www.undrr.org/publication/hazard-definition-and-classification-review-technical-report) and the codelist includes a mapping to [EM-DAT](https://www.emdat.be/) and the [UNDRR Hazard Information Profiles](https://www.undrr.org/publication/documents-and-publications/hazard-information-profiles-hips-2025-version).
 
 ````{dropdown} Codes
 

diff --git a/schema/codelists/open/classification_scheme.csv b/schema/codelists/open/classification_scheme.csv
@@ -3,10 +3,8 @@ GED4ALL,GED4ALL socio-economic taxonomy,The socio-economic taxonomy defined in t
 MOVER,MOVER social vulnerability categories,The social vulnerability categories defined in the Multi-Hazard Open Vulnerability Platform for Evaluating Risk (MOVER).,https://www.gfdrr.org/en/publication/mover,Socio-economic index
 GLIDE,Global Identifier Numbers,Identification codes generated by GLIDE since 2004 for all new disaster events reported by the Asian Disaster Reduction Center and GLIDE partner organizations.,https://www.glidenumber.net/glide/public/search/search.jsp,Distaster identifier
 EMDAT,EM-DAT International Disaster Database,"EM-DAT contains data on the occurrence and impacts of over 26,000 mass disasters worldwide from 1900 to the present day. The database is compiled from various sources, including UN agencies, non-governmental organizations, reinsurance companies, research institutes, and press agencies. The Centre for Research on the Epidemiology of Disasters (CRED) distributes the data in open access for non-commercial use.",https://www.emdat.be/,Disaster identifier
-USGS_EHP,USGS Earthquake Hazards Program,"The USGS monitors and reports on earthquakes globally, assigning each reported event a unique identifier. These event identifiers are used in the associated USGS products including PAGER, ShakeMap and DYFI.",https://earthquake.usgs.gov/earthquakes/search/,Disaster identifier
 HAZUS,HAZUS Building Classification,The building occupancy and structural classification system used in FEMA's HAZUS multi-hazard loss estimation software. Categorizes structures by construction type and occupancy class for use in earthquake flood and hurricane loss modeling.,https://www.fema.gov/flood-maps/products-tools/hazus,Building taxonomy
 CDC-SVI,CDC/ATSDR Social Vulnerability Index,A social vulnerability index developed by the U.S. Centers for Disease Control and Prevention (CDC) and Agency for Toxic Substances and Disease Registry (ATSDR) that uses U.S. Census data to rank census tracts on 16 social factors grouped into four themes: socioeconomic status; household characteristics; racial and ethnic minority status; and housing type and transportation.,https://www.atsdr.cdc.gov/place-health/php/svi/index.html,Socio-economic index
-INFORM,INFORM Risk Index,A global open-source risk assessment framework for humanitarian crises and disasters developed under the Inter-Agency Standing Committee. INFORM measures risk across three composite dimensions — Hazard & Exposure; Vulnerability; and Lack of Coping Capacity — producing a country-level risk index updated annually.,https://www.inform-index.org/,Socio-economic index
 EMS-98,European Macroseismic Scale 1998,The European Macroseismic Scale (EMS-98) is a standard seismic intensity scale that also classifies buildings into vulnerability classes A through F based on their resistance to earthquake damage. It is widely used across Europe for earthquake impact assessment and macroseismic data compilation.,https://www.gfz.de/en/EMS-98%20%20-%20%20European%20Macroseismic%20Scale%201998,Building taxonomy
 PAGER,PAGER-STR Building Taxonomy,The PAGER Structural Type (PAGER-STR) taxonomy is a global classification system for building structural types developed by the USGS as part of the Prompt Assessment of Global Earthquakes for Response (PAGER) program. It provides standardized structural building types for rapid earthquake loss estimation.,https://earthquake.usgs.gov/data/pager/,Building taxonomy
 OED,Open Exposure Data,The Open Exposure Data (OED) standard is an open-source property exposure data format developed and maintained by the Oasis Loss Modelling Framework. OED provides a standardized schema for representing insured property exposure data enabling interoperability between catastrophe models and consistent loss estimation across the insurance industry.,https://oasislmf.github.io/sections/OED.html,Building taxonomy

diff --git a/schema/rdls_schema.json b/schema/rdls_schema.json
@@ -1718,7 +1718,12 @@
         "asset_type": {
           "title": "Asset type",
           "description": "The type of asset",
-          "$ref": "#/$defs/Classification"
+          "$ref": "#/$defs/Classification",
+          "properties": {
+            "scheme": {
+              "description": "The scheme or codelist from which the classification code is taken, using the open [classification_scheme](https://docs.riskdatalibrary.org/en/{{version}}/reference/codelists/#classification-scheme) codelist. Use of GED4ALL is recommended."
+            }
+          }
         },
         "metrics": {
           "title": "Exposure metrics",

diff --git a/tests/test_schema.py b/tests/test_schema.py
@@ -47,6 +47,7 @@ def validate_metadata_presence_allow_missing(pointer):
       or pointer.startswith('/$defs/Hazard')
       or pointer.startswith('/$defs/HazardWithTrigger')
       or pointer.startswith('/$defs/Resource/anyOf/')
+      or pointer.startswith('/$defs/Exposure_item/properties/asset_type/properties/scheme')
     )
 
 validate_metadata_presence_kwargs = {