The Risk Data Library Standard (RDLS) is an open data standard to make it easier to work with disaster and climate risk data. It provides a common description of the data used and produced in risk assessments, including hazard, exposure, vulnerability, and modelled loss, or impact, data.
From suggestion in https://github.com/GFDRR/rdls-spreadsheet-template/issues/3#issuecomment-1671200463 location_gazetteers.csv currently has the 2 digit ISO 3166 country codes, but 3 digit codes should also be an option to specify