The EMC Directive 89/336/EEC mandates that all electronic equipment must comply with the applicable EN specification for EMI. Some typical EN specifications follow:

Electronic Equipment Spec.
Industrial, scientific and medical equipment EN55011
Broadcast receivers and associated equipment EN55013
Electrical motor-operated and thermal appliances for household and similar purposes, electrical tools and similar apparatus EN55014
Electrical lighting and similar apparatus EN55015
Information technology equipment EN55022