Article 3

1. NACE Rev. 1 shall be used by the Commission for all statistics classified by economic activities. 2. Member States' statistics classified by economic activities shall be compiled using NACE Rev. 1 or a national classification derived therefrom which complies with the following rules: the national classifications shall contain levels corresponding to those of NACE Rev. 1, in the sense that each of the levels shall consist of either the same headings as the corresponding NACE Rev. 1 level or headings constituting an exact breakdown thereof; (b) additional levels may be introduced; (c) each of the levels, except for the highest, shall aggregate exactly into the next higher level of NACE Rev. 1; (d) the coding may be different. 3. Member States shall forward to the Commission, for its approval prior to their publication, the drafts defining or modifying their national classifications. The Commission shall check the conformity of these drafts with paragraph 2 of this Article. The national classification approved by the Commission shall be transmitted to the other Member States for information. Member States' publications shall include a table of correlation between the national classifications and NACE Rev. 1. 4. Member States wishing to use a national classification derived from NACE Rev. 1 shall adopt as soon as possible, and not later than 31 December 1992, the measures necessary to establish a national classification pursuant to this Article.

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Source: EUR-Lex (Cellar) · retrieved 2026-11-07 · Text as adopted (Official Journal); later amendments are not incorporated in this text.