means that a product has such characteristics that the works in which it is to be incorporated, assembled, applied or installed, can, if properly designed and built, satisfy the essential requirements of the CPD (Article 2(1) of the CPD)
Fitness for use is a fundamental concept of the CPD, but is dependent upon the intended use of the product and is subject to national provisions on the design and execution of works (Article 2.1 of the CPD).