|关注一亩三分地微博：You may qualify for an additional 17 months of OPT under the following circumstances: Your degree for your current period of post-completion OPT is a bachelor’s, master’s or doctoral degree in a STEM program listed on the Department of Homeland Security's STEM designated degree program list. The employer from which you are seeking work uses the E-Verify Program. You have not already received a 17-month extension of OPT. Once approved, your designated school official (DSO) will provide you with a new Form I-20, “Certificate of Eligibility for Nonimmigrant Student Status” that shows a recommendation for this employment on page three. To apply for work authorization, you must electronically file a Form I-765, "Application for Employment Authorization" with U.S. Citizenship and Immigration Services (USCIS) and pay a filing fee. USCIS will send you a Form I-766, "Employment Authorization Document" (EAD) upon approving your petition. If your EAD for OPT expires, you may continue to work for up to 180 days while your 17-month extension is still pending, if you meet the following conditions: You are currently in a period of post-completion OPT. You properly filed your application for the 17-month extension with USCIS in a timely manner. Remember, you must report any changes to your name, address, employer or loss of employment to your DSO within 10 days.