Form C-404, "Report of Building or Zoning Permits Issued for New Privately-Owned Housing Units" is used to obtain data for the Building Permits Survey. Statistics are based upon reports submitted by local building permit officials.
Form C-411, "Survey of Residential Building or Zoning Permit Systems" is used to canvass all active governments in the United States. The Building Permits universe is updated by adding all places found that have established a new permit system.