This working group, through most of its members, is the REF-Union EMC committee and its equivalent representation at the IARU. It has been created in the beginning of 2003 when it has been found needs to answer at several worries related to Electromagnetic compatibility (EMC) in the French radio amateur community and also that similar entities were already existing in others national associations.
Electromagnetic compatibility is defined through the European directives as
"the ability of any device, appliance or system to operate, within its electromagnetic environment, satisfactorily and without producing by itself any intolerable disturbance to anything situated in this environment".