17.7.1999 Official Journal of the European Communities L 184(37 COMMISSION DECISION of 29 June 1999 on the procedure for attesting the conformity of construction products pursuant to Article 20(2) of Council Directive 89/106/EEC as regards space heating appliances (notified under document number C(1999) 1479) (Text with EEA relevance) (1999/471/EC) THE COMMISSION OF THE EUROPEAN COMMUNITIES, Having regard to the Treaty establishing the European Community, Having regard to Council Directive 89/106/EEC of 21 December 1988 on the approximation of laws, regulations and administrative provisions of the Member States relating to construction products ('), as amended by Directive 93/ 68/EEC (%), and in particular Article 13(4) thereof, (1)  Whereas the Commission is required to select, as between the two procedures under Article 13(3) of Directive 89/106/EEC for attesting the conformity of a product, the least onerous possible procedure consistent with safety’; whereas this means that it is necessary to decide whether, for a given product or family of prod- ucts, the existence of a factory-production control system under the responsability of the manufacturer is a necessary and sufficient condition for an attestation of conformity, or whether, for reasons related to compli- ance with the criteria mentioned in Article 13(4), the intervention of an approved certification body is required; (2)  Whereas Article 13(4) requires that the procedure thus determined must be indicated in the mandates and in the technical specifications; whereas, therefore, it is desirable to define the concept of products or family of products as used in the mandates and in the technical specifications; (3)  Whereas the two procedures provided for in Article 13(3) are described in detail in Annex III to Directive 89/106/EEC; whereas it is necessary therefore to specify clearly the methods by which the two procedures must () O] L 40, 11.2.1989, p. 12. () O] L 220, 30.8.1993, p. 1. be implemented, by reference to Annex IIl, for each product or family of products, since Annex III gives preference to certain systems; (4)  Whereas the procedure referred to in point (a) of Article 13(3) corresponds to the systems set out in the first possibility, without continuous surveillance, and the second and third possibilities of point (i) of section 2 of Annex III, and the procedure referred to in point (b) of Article 13(3) corresponds to the systems set out in point (i) of section 2 of Annex III, and in the first possibility, with continuous surveillance, of point (i) of section 2 of Annex II[; (5)  Whereas the measures provided for in this Decision are in accordance with the opinion of the Standing Committee on Construction, HAS ADOPTED THIS DECISION: Article 1 The products and families of products set out in Annex I shall have their conformity attested by a procedure whereby the manufacturer has under its sole responsability a factory- production control system ensuring that the product is in conformity with the relevant technical specifications. Article 2 The products set out in Annex II shall have their conformity attested by a procedure whereby, in addition to a factory- production control system operated by the manufacturer, an approved certification body is involved in assessment and surveillance of the production control or of the product itself.