A Checklist to assist employers processing E-1 Treaty Trader or E-2 Treaty Investor nonimmigrant visa applications at a US embassy or consulate, or petitions to US Citizenship and Immigration Services (USCIS) to change to E-1 or E-2 status or extend E-1 or E-2 nonimmigrant stay. This resource identifies the issues that employers should consider, the questions they should ask, and the documents and information they should gather when preparing and filing E-1 or E-2 visa applications or petitions.