The Census Bureau obtains its data on domestic manufacturing through surveys of manufacturing companies with annual shipments totaling $500 million or more. Participation is voluntary, and responses may be submitted over the Internet, by telephone, or by fax. Relevant data received by the eighteenth day of the month following the month covered by the survey are included in the advance report on durable goods. Additional data, collected through the thirtieth of the month, are consolidated with the previously reported data and included in the more complete Manufacturers’ Shipments, Inventories, and Orders.