Many opponents of the E-Verify work authorization verification program argue that the programs accuracy presents significant problems for the immigrant population. In a recent study by Westat Corporation, it was discovered that the erroneous rate of tentative non-confirmations (TNCs) has lowered.
- E-Verify has a 94% accuracy rate for Final Non-Confirmations
- A secondary review of Final Non-Confirmations by USCIS increased accuracy rates by 32%
- USCIS identifies substantial numbers of unauthorized workers who would not have been identified prior to 2006
- Lags in entering information into key DHS databases adversely affect new immigrants, nonimmigrants and changes in immigration and citizenship status. Data lags of several weeks still persist in some cases, which results in the issuance of TNCs for some employment authorized workers.
- Some inaccurate Final Non-Confirmations are issued because employers fail to promptly notify workers about a TNC or do not clearly explain the TNC process
The study reveals weaknesses in the system as well. Released in July 2012, the recent updates to the Form I9 and to the E-Verify TNC process itself will further improve the work authorization project and bolster confidence in the E-Verify program.