Based on the Study Cartographic Recommendations for Humanitarian Demining Map Symbols in the Information Management System for Mine Action (IMSMA), the first set of Symbology was developed in 2006 for inclusion in {{IMSMANG}}.
[http://www.gichd.org/limafileadmin/reportsGICHD-publicationsresources/informationrec-managementdocuments/IMSMA-resourcesSymbology-and-publications/#c5499 FinalReport.pdf Download the study]
The current symbology may be found in C:\IMSMAng\server\gis\maps\IMSMA.style.