OPT YSC1890017XXX timeline

分享一个stem extension 的timeline， 给今年抽H1B 攒人品!!
2017.10.12 寄出opt， ups 2-day shipping。其实应该选overnight shipping。
2017.10.19 uscis received。
2018.1.2 75 days, send e-request. 莫名其妙在nj续驾照成功，只看了i-20就通过了，没查ead卡，运气很好！
2018.1.3 SR response, "your case is under review by an officer"。
2018.1.5 EAD card is being produced.
2018.1.9 EAD, approval notice received.

总结：申请最好要寄overnight shipping，理论上越快越早拿。注册usps inform delivery, uscis一寄出卡，网上就能查到什么时候到，很方便！Service Requst 感觉可能有用。