 These directives imposed certain requirements for space, hygiene, safety, and amenities in the accommodation offered by employers.That same year, the Federal Government granted a sum of 17 million DM to the Länder for the improvement and modernization of housing built before 21 June 1948.In addition, according to a 1971 regulation of the Board of the Federal Labour Office, "construction of workers' hostels qualified for government financial support under certain conditions".