The European ordering rules (EOR / EN 13710) define an ordering for strings written in languages that are written with the Latin, Greek and Cyrillic alphabets. The standard covers languages used by the European Union, the European Free Trade Association, and parts of the former Soviet Union. It is a tailoring of the Common Tailorable Template of ISO/IEC 14651.[1] EOR can in turn be tailored for different (European) languages. But in inter-European contexts, EOR can be used without further tailoring.