GEFEG participates in numerous national and international standardization committees such as ASC X12, DIN, EDIFICE, ISO 20022, ISO/TC 154, OAGI, UN/CEFACT and VDA as well as in the quality assurance of the UN/EDIFACT standard.

In May 2000, GEFEG submitted an application to DIN in which the generation of XML schemas from EDI implementations is defined and documented. In the resulting standardization project, GEFEG, together with other user groups, actively participated in designing the draft at all stages until its official publication as draft standard E DIN 16557-5 “EDIFACT – Part 5: Rules for generating XML Schemas (XSD) from EDI(FACT) application rules”. Specifically, rules were developed and normatively defined on how an EDI(FACT) application description can be converted into a schema.