In 1949, in response to the decline of many central-city neighborhoods, the federal government passed the urban housing act, which created the policy of

The Urban Housing Act was enacted in 1949 and embodied within the Fair Deal domestic policy implemented by President Truman.

This act contained provisions that extended the participation of the federal goverment in the insurance and issuing of mortgages and for the construction and provision of public housing facilities. It also contained renewal programs specially targeting the end of slum settlements.

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both include an amendment process.