In 1986, IRCA established the employment verification process based on employers’ review of documents presented by employees to prove identity and work eligibility. On the Form I-9, employees must attest that they are U.S. citizens, lawfully admitted permanent residents, or aliens authorized to work in the United States. Employers must then certify that they have reviewed the documents presented by their employees to establish identity and work eligibility and that the documents appear genuine and relate to the individual presenting them. In making their certifications, employers are expected to judge whether the documents presented are obviously counterfeit or fraudulent. Employers generally are deemed in compliance with IRCA if they have followed the Form I-9 process in good faith, including when an unauthorized alien presents fraudulent documents that appear genuine. Following the passage of IRCA in 1986, employees could present 29 different documents to establish their identity and/or work eligibility. In a 1997 interim rule, the former U.S. Immigration and Naturalization Service (INS) reduced the number of acceptable work eligibility documents from 29 to 27. The Illegal Immigration Reform and Immigrant Responsibility Act (IIRIRA) of 1996 required the former INS and SSA to operate three voluntary pilot programs to test electronic means for employers to verify an employee’s eligibility to work, one of which was the Basic Pilot Program. The Basic Pilot Program was designed to test whether pilot verification procedures could improve the existing employment verification process by reducing (1) false claims of U.S. citizenship and document fraud, (2) discrimination against employees, (3) violations of civil liberties and privacy, and (4) the burden on employers to verify employees’ work eligibility. In 2007, USCIS renamed the Basic Pilot Program the Employment Eligibility Verification (EEV) program. EEV provides participating employers with an electronic method to verify their employees’ work eligibility. Employers may participate voluntarily in EEV, but are still required to complete Forms I-9 for all newly hired employees in accordance with IRCA. After completing the forms, these employers query EEV’s automated system by entering employee information provided on the forms, such as name and Social Security number, into the EEV Web site within 3 working days of the employees’ hire date. The program then electronically matches that information against information in SSA’s NUMIDENT database and, for noncitizens, DHS databases to determine whether the employee is eligible to work. EEV electronically notifies employers whether their employees’ work authorization was confirmed. Those queries that the DHS automated check cannot confirm are referred to DHS immigration status verifiers, who check employee information against information in other DHS databases. The EEV process is shown in figure 1. In cases when EEV cannot confirm an employee’s work authorization status either through the automatic check or the check by an immigration status verifier, the system issues the employer a tentative nonconfirmation of the employee’s work authorization status. In this case, the employers must notify the affected employees of the finding, and the employees have the right to contest their tentative nonconfirmations by contacting SSA or USCIS to resolve any inaccuracies in their records within 8 days. During this time, employers may not take any adverse actions against those employees, such as limiting their work assignments or pay. After 10 days, employers are required to either immediately terminate the employment or notify DHS of the continued employment of workers who do not successfully contest the tentative nonconfirmation and those who the pilot program finds are not work-authorized. The EEV program is a part of USCIS’s Systematic Alien Verification for Entitlements Program, which provides a variety of verification services for federal, state, and local government agencies. USCIS estimates that there are more than 150,000 federal, state, and local agency users that verify immigration status through the Systematic Alien Verification for Entitlements Program. SSA also operates various verification services. Among these are the Employee Verification Service (EVS) and the Web- based SSN Verification Service (SSNVS), which can be used to provide verification that employees’ names and Social Security numbers match SSA’s records. These services, designed to ensure accurate employer wage reporting, are offered free of charge. Employer use is voluntary, and the services are not widely used. Mandatory electronic employment verification would substantially increase the number of employers using the EEV system, which would place greater demands on USCIS and SSA resources. As of May 2007, about 17,000 employers have registered to use the program, 8,863 of which were active users, and USCIS has estimated that employer registration is expected to greatly increase by the end of fiscal year 2007. If participation in the EEV program were made mandatory, the program may have to accommodate all of the estimated 5.9 million employers in the United States. USCIS officials estimate that to meet a December 2008 implementation date, this could require about of 30,000 employers to register with the system per day. The mandatory use EEV can affect the capacity of the system because of the increased number of employer queries. USCIS has estimated that a mandatory EEV could cost USCIS $70 million annually for program management and $300 million to $400 million annually for compliance activities and staff. The costs associated with other programmatic and system enhancements are currently unknown. According to USCIS, cost estimates will rise if the number of queries rises, although officials noted that the estimates may depend on the method for implementing a mandatory program. SSA officials told us they have estimated that expansion of the EEV program to levels predicted by the end of fiscal year 2007 would cost $5 to $6 million, but SSA was not yet able to provide us estimates for the cost of a mandatory EEV. According to SSA officials, the cost of a mandatory EEV would be driven by the increased workload of its field office staff due to resolving SSA tentative nonconfirmations. A mandatory EEV would require an increase in the number of USCIS and SSA staff to operate the program. For example, USCIS had 13 headquarters staff members in 2005 to run the program and 38 immigration status verifiers available for secondary verification. USCIS plans to increase staff levels to 255 to manage a mandatory program, which includes increasing the number of immigration status verifiers who conduct secondary verifications. USCIS officials expressed concern about the difficulty in hiring these staff due to lengthy hiring processes, which may include government background checks. In addition, according to SSA officials, a mandatory EEV program would require additional staff at SSA field offices to accommodate an increase in the number of individuals visiting SSA field offices to resolve tentative nonconfirmations. According to SSA officials, the number of new staff required would depend on both the legislative requirements for implementing mandatory EEV and the effectiveness of efforts USCIS has under way to decrease the need for individuals to visit SSA field offices. For this reason, SSA officials told us they have not yet estimated how many additional staff they would need for a mandatory EEV. In prior work, we reported that secondary verifications lengthen the time needed to complete the employment verification process. The majority of EEV queries entered by employers—about 92 percent—confirm within seconds that the employee is authorized to work. About 7 percent of the queries are not confirmed by the initial automated check and result in SSA-issued tentative nonconfirmations, while about 1 percent result in DHS-issued tentative nonconfirmations. With regard to the SSA-issued tentative nonconfirmations, USCIS and SSA officials told us that the majority occur because employees’ citizenship status or other information, such as name changes, is not up to date in the SSA database. SSA does not update records unless an individual requests the update in person and submits the required evidence to support the change in its records. USCIS officials stated that, for example, when aliens become naturalized citizens, their citizenship status is often not updated in the SSA database. In addition, individuals who have changed their names for various reasons, such as marriage, without notifying SSA in person may also be issued an SSA tentative nonconfirmation. According to SSA officials, although SSA instructs individuals to report any changes in name, citizenship, or immigration status, many do not do so. When these individuals’ information is queried through EEV, a tentative nonconfirmation would be issued, requiring them to go to an SSA field office to show proof of the change and to correct their records in SSA’s database. USCIS and SSA are exploring some options to improve the efficiency of the verification process. For example, USCIS is exploring ways to automatically check for naturalized citizens’ work authorization using DHS databases before the EEV system issues a tentative nonconfirmation. Furthermore, USCIS is planning to provide naturalized citizens with the option, on a voluntary basis, to provide their Alien Number or Naturalization Certification Number so that employers can query that information through the EEV system before referring the employees to SSA to resolve tentative nonconfirmations. SSA is also coordinating with USCIS to develop an automated secondary verification capability, which may reduce the need for employers to take additional steps after the employee resolves the SSA tentative nonconfirmation. USCIS and SSA officials told us that the agencies are planning to provide SSA field office staff with access to the EEV system so that field office staff can resolve the SSA tentative nonconfirmation directly in the system at the time the employee’s record is updated at the field office. According to SSA officials, the automated secondary verification capability is tentatively scheduled to be implemented by October 2007. While these steps may help improve the efficiency of the verification process, including eliminating some SSA tentative nonconfirmations, they will not entirely eliminate the need for some individuals to visit SSA field offices to update records when individuals’ status or other information changes.