US work visas requires the prospective employer to first file a petition with U.S. Citizenship and Immigration Services (USCIS). Below is a guide to submitting an application, and information to help ensure that you meet all requirements for employment with ICE.A sample letter offering a job contingent upon the results of a background check or other criteria. Use Form I9 to verify the identity and employment authorization of individuals hired for employment in the United States. You can find more information in the Application for Employment Authorization on the U.S. Citizenship and Immigration Services website. Here, you'll find guidance on constructing and tailoring an employment offer letter template to align with your specific requirements. All UM offer letters are required to use consistent wording to specify employment eligibility and regulatory immigration requirements. In the opening paragraph of the letter enter the job position that is being offered, then enter the name of the company that is the Employer. Supporting documents that an officer may ask for: an invitation from the company you're working for. "Thank you for your kind offer of employment which I gratefully accept.