The precise requirements are specified in each relevant directive, but essentially Declarations of Conformity should include the following:
business name and full address of the manufacturer and, where appropriate, his authorised representative;
for machinery, the name and address of the person authorised to compile the technical file, who must be established in the Community;
description and identification of the product, which may including information on model, type, and serial number
a declaration as to which Directive(s) the product fulfils all relevant provisions
where appropriate, a reference to the harmonised standards used, and to which conformity is declared
where appropriate, the name, address and identification number of the notified body which carried out conformity assessment
the identity and signature of the person empowered to draw up the declaration on behalf of the manufacturer or his authorised representative