Attach all required documents, paste the photograph and Post it to the Consulate. A valid Indiana driver's license or identification card;. 2.One (1) document from approved list showing proof of identity;. 3. This guide will clarify what domicile is, how to establish it, and the documentation you need for proof of domicile. These documents collectively help establish that your permanent home is in the U.S., meeting the domicile requirement for immigration purposes. If you are a US citizen domiciled abroad, you can submit Form I864, Affidavit of Support, if you intend to reestablish US domicile. Once you submit your request system will give you detailed information about documents required, fees, and link to apply for Misc. Service Application form. One of the following MUST be produced as proof: -. Customer: I need to prove US domicile for Form I864 because I list a foreign address on my taxes and on Form I864.