Please follow the writing format:
1. (If you mailed your OPT/STEM OPT packet out to USCIS) The date that you sent out the OPT application packet to USCIS: 04/30/2021
2. (If you mailed your OPT/STEM OPT packet out to USCIS): Where did you send it to? Chicago Lockbox
3. (If you filed the online OPT/STEM OPT application) The date you submitted the online OPT application: N/A
4. (If your OPT/STEM OPT has been approved) The date you were notified that your OPT/STEM is approved. It can be found in the I-797C: 08/09/2021
5. (If you have received your EAD card) The date you received the EAD card: 08/18/2021
6. Any questions