In the case of production of an appliance as a single unit or in small quantities, EC verification by single unit, as referred to in point 6 of Annex II, may be chosen by the manufacturer.

After completion of the procedures referred to in paragraphs 1(b) and 2, the CE marking shall be affixed to conforming appliances in accordance with Article 10.

The means of certification of conformity referred to in paragraph 1 shall be applied in respect of fittings with the exception of the affixing of the CE marking and, where appropriate, the drawing-up of the declaration of conformity.

A certificate shall be issued declaring the conformity of the fittings with the provisions of this Directive which apply to them and stating their characteristics and how they must be incorporated into an appliance or assembled to assist compliance with the essential requirements applicable to finished appliances set out in Annex I.

The certificate shall be supplied with the fitting.

Where the appliances are covered by other Directives dealing with other aspects and specifying the affixing of the CE marking, the latter shall indicate that the appliances are also presumed to conform to the provisions of those Directives.

However, where one or more of these Directives allow the manufacturer, during a transitional period, to choose which arrangements to apply, the CE marking shall indicate conformity to the provisions only of those Directives applied by the manufacturer. In this case, particulars of the Directives applied, as published in the Official Journal of the European Union, must be given in the documents, notices or instructions required by the Directives and accompanying such devices.

Records and correspondence relating to the means of certification of conformity shall be drawn up in the official language(s) of the Member State where the body responsible for carrying out these procedures is established or in a language accepted by it.