For machines not listed in Annex IV of the Machinery Directive, the manufacturer can either conduct the CE conformity assessment testing himself or apply to an authorised testing centre. An integral part of the test is determining and assuring, respectively, the conformity of the machine with relevant European directives. After a successful conformity test, the manufacturer labels the product with the CE mark and has to enclose a declaration of conformity in the machinery documentation in which he confirms with legally binding effect compliance with the applicable directives.

For machines and safety components presenting a particularly high risk the manufacturer or importer must not declare conformity with the applicable directives himself. A notified body listed in the Official Journal of the European Union has to test and confirm the compliance of the product with the relevant directives. This procedure, the EC type test, is explained in Annex VI of the Machinery Directive, the corresponding groups of machinery are listed in Annex IV.

SLG Prüf- und Zertifizierungs GmbH is a notified body (ID: 0494) for conformity assessment procedures according to the Machinery Directive.