No one can require you to use Self Check to guarantee that you are authorized to work. For example, it is unlawful for a potential employer to require proof of your Self Check results before offering you a job.
If an employer asks you to run a Self Check query to prove that you are authorized to work in the United States, you should notify the Department of Justice, Immigrant and Employee Rights Section (IER) at (800) 255-7688.
For more information, refer to the Know Your Rights page from the link in the left navigation bar.