可以这样利用opt extension的180天吗

五月中现在的ead卡到期，可以在五月初申请吗，这样等他批准的时间就等于额外拿到的时间？这样操作有什么风险需要注意的吗

soda小夏花

180day写的是 while your OPT extension application is pending....

If you file your STEM OPT extension application on time and your OPT period expires while your extension application is pending, we will automatically extend your employment authorization for 180 days.  This automatic 180-day extension ceases once USCIS adjudicates your STEM OPT extension application.