of equipments and plants and environmental protection to the best available technology; _the maintaining of the safety conditions already achieved; _the creation, in all Production Units staff at any hierarchi cal levels, of an indispensable form of behavioral self- discipline with regard to accidents, with an extensive and widespread accident-prevention culture which, starting from Top Management, involves all the people assigned to prevention and protection activities and transmits to all operators the necessary awareness in order to minimize working risks.