 A directive on protection against noise at the place of work was adopted in November 1970.If measurements showed or there was reason to assume that a noise level guide value of 90 dB( A) may be exceeded at the place of work, then the authority had to instruct the employer to arrange check-ups of the employees concerned and these employees had to use personal noise protection devices.A matching fund program for 15 million employees was also introduced, which stimulated them to accumulate capital.