Depuis la fin des années 80, la Commission proposait une série de révisions des directives existantes, à la suite des progrès scientifiques et techniques.
At the same time, however, we are, as a result, standing on the threshold of new tasks that are at least as important. Since the end of the 1980s, a range of Commission proposals had been submitted to the House, aimed at revising existing directives and made necessary by scientific and technical developments.