Protection of the environment, especially the principle of precaution and prevention, has become an autonomous, dynamic objective in internal market harmonization, revealing partly a centralized, invasive EU regulation, even total product bans and sale prohibition. The “high level of protection” argument (art. 114 par. 3 TFEU) does not justify any strong primacy and especially no predominance of the precaution principle. In this respect the principle of proportionality has