fundamental requirements on health, safety, protection of the environment, etc., mentioned in Art. 36 of the EEC Treaty as permissible justifications for restricting the movement of products. They are the legal basis for harmonization in the "new approach" (q.v.) directives, those aspects of common conformity specifications of such importance as to necessitate compliance as a matter of legal obligation for the implementation of the mutual recognition of the results of conformity tests on terminal equipment as an integral part of the type approval procedure