The document discusses the requirements for machinery to comply with the Machinery Directive, which became mandatory in the European Union in 1995. It defines machinery as assemblies of parts including at least one moving component used for industrial purposes. Compliance requires a technical file demonstrating the machinery meets safety requirements, a declaration of conformity, and affixing the CE mark. For most machinery, manufacturers can self-certify compliance by preparing a technical file and declaration of conformity. A small percentage require certification by a Notified Body which evaluates the technical file and inspects the machinery. The technical file must be kept on file for 10 years after the last unit is produced. Other applicable directives on electromagnetic compatibility, low voltage equipment, may also require compliance.