New York Alternative County Government Law Sec. § 451 Powers and Duties The county commissioner of public welfare shall: 1. Have all the powers and perform all the duties conferred on or required of a county commissioner of public welfare under the social welfare law. 2. Have charge of the county home, county hospital, and any other public welfare institution maintained by the county. 3. Perform such additional and related duties as may be delegated to him by county act.