Recital 25

(25) In order to improve the legal certainty and to mitigate the fragmentation of the Union market for construction products it is necessary to clearly define the area regulated at Union level, the so-called ‘harmonised zone’, as opposed to the elements remaining within the competence of Member States. Member States remain competent to lay down provisions on construction works, including on their design and dimensioning. The establishment of the harmonised zone should not affect the right of Member States to specify national requirements on construction works and should not reduce the level of protection already existing and justified in the Member States. National environmental policies applicable to construction works should not be considered as prohibitions or barriers to the making available of products on the market as long as they respect the harmonised zone.

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Source: EUR-Lex (Cellar) · retrieved 2026-10-17 · Text as adopted (Official Journal); later amendments are not incorporated in this text.