 In a directive of 10 November 1970, the Minister of Labour and Social Affairs recommended to the higher authorities for work protection of the "Lander" to bring in the directive published, in agreement with the Ministry of Labour, by the German Engineers' Association on the evaluation of work station noise in relation to loss of hearing, in order to improve safeguards for workers against the noises in question.In September 1971, an ordinance was published concerning dangerous working materials; safeguarding persons using these materials against the dangers involved.By a decree of the Federal Minister for Labour and Social Order, the Federal Institute for Industrial Protection became the Federal Agency for Industrial Protection and Accident Research.