Tips for USCIS Cover Letter The letter should generally be brief (one page) and to the point. Clearly and concisely state what the letter is regarding. Only discuss what is necessary to achieve the letter's purpose. Proofread the letter carefully to avoid mistakes.
Immigration forms can be ordered directly from the USCIS website or via telephone through the USCIS forms request line at 1-800-870-3676.
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.
Where must I file Form I-90? You must mail your paper Form I-90, Application to Replace Permanent Resident Card, including any initial evidence and supporting documentation, to the designated lockbox facility in Phoenix, Arizona. The Phoenix Lockbox address is: USCIS, P.O. Box 21262, Phoenix, AZ 85036.
Evidence may consist of a copy of a lease agreement, deed, or utility bills dated within the last six months. If utility bills or other proof of residence are in your spouse or parent's name, provide a copy of your original marriage or birth certificate as applicable.