USCIS has made available this additional guidance for Federal contractors subject to the E-Verify for Federal Contractors rule that became effective September 8, 2009:

E-Verify Supplemental Guide For Federal Contractors

The rule applies to Federal contractors who are awarded a new contract on or after September 8, 2009, that includes a Federal Acquisition Regulation (FAR) E-Verify clause. For more information, see the USCIS webpage on E-Verify for Federal Contractors.