text: 58. On 19 July 1981 a decree cancelled the debts of debtors living in housing developments over which the Government had taken control, and in 1982 the Ownership Act was promulgated in order to facilitate the procedure. Tenants Act 59. The Tenants Act was passed in January 1980 in order to "regulate tenant-landlord relations, on the principle that housing should meet a social need and consequently must not be a means of enrichment".E/1986/3/Add.l5 page 27 E/1986/3/Add.l5 page 28 60. More than 75,000 families have benefited from the Act and the subsequent amendments. Security of tenure has been guaranteed to 39.5 per cent of the urban population, arbitrary expulsions have ceased and rentals proportional to the valuation of the housing introduced; provision has also been made for action, at the request of tenants, in districts where living conditions are unsatisfactory. Land Use Act 61. In September 1980 the Land Use Act, covering Human Settlements Development Areas, was adopted in order to rationalize and optimize investment in city infrastructure and services. The Act empowered MINVAH, subsequently replaced by the municipal councils, to regulate and monitor urban land use by means of development and regulatory plans. Expropriations Act for Undeveloped Urban Areas 62. In December 1981 the Government Junta for National Reconstruction promulgated the Expropriation Act for undeveloped urban areas in order to streamline the implementation of projects with a social objective and to try and ensure that urban land was treated "so as to fulfil its social role, as a resource at the service of the population as a whole, in view of which the State is responsible for deciding on its rational and proper use". The Act empowered MINVAH, subsequently replaced by the municipal councils to expropriate by means of ministerial decree, of land necessary for the 
analysis: The text appears to focus on the government's efforts to regulate and manage urban development, housing, and land use in a country. It mentions the cancellation of debts, the passage of laws to regulate tenant-landlord relations, and the expropriation of land for social projects. These initiatives seem to be aimed at promoting social welfare and improving living conditions for citizens, rather than directly addressing economic or environmental issues.