To check your case status using our online tool, you have to have your case receipt number.
If you do not know your receipt number, contact the USCIS Contact Center for help. You can continue to use Informed Delivery to track and manage the delivery of your package.
Mark the envelope and the cover letter with the type of submission. For example, Original Submission, Application to Register Permanent Residence or Adjust Status (Form I-485). Mark the envelope and the cover letter with the form number.
You must return the USCIS-issued document with the incorrect information. Generally, you also need to submit either a statement explaining the error or supporting documentation to show what the correct information should be, or both.
If you hand write your answers, use black ink. Make sure that everything you write on the form is clear, so we can easily read the information on the scanned image we produce when we process your form.
The receipt number consists of three letters-for example, EAC, WAC, LIN, SRC, NBC, MSC or IOE-and 10 numbers. You can find it on notices of action USCIS has sent you.