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docs/guides/mappings.md

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+# Taxonomy mappings
+
+When preparing RDLS metadata, you may need to map from one taxonomy into the taxonomy used by RDLS. 
+The guidance below provides taxonomy mappigns to assist you.
+
+## Hazard taxonomies
+
+### RDLS - UNDRR hazard taxonomy
+The  United Nations Office for Disaster Risk Reduction and International Science Council Sendai [Hazard Definition and Classification Review Technical Report](https://www.undrr.org/publication/hazard-definition-and-classification-review-technical-report) provides a common set of hazard definitions for monitoring and reviewing implementation of the Sendai Framework, Sustainable Development Goals and the Paris Agreement on Climate Change. 
+
+The csv mapping file is [RDL_hazard_mapping_UNDRR-HIPS.csv](https://github.com/GFDRR/rdl-standard/blob/2-addHazardMappings/schema/mappings/RDL_hazard_mapping_UNDRR-HIPS.csv)
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+(HTML to add)