To advance special social and economic goals, selected providers shall have preferred source status for the purposes of procurement in accordance with the provisions of this Part. Procurement from these providers, except those defined in section 250.13(f) of this Part, shall be exempted from the competitive procurement provisions of this Part. Such exemption shall apply to commodities produced, manufactured or assembled, including those repackaged to meet the form, function and utility required by State agencies, in New York State and, where so designated, services provided by those sources in accordance with this Part.