Go to
https://iacra.faa.gov/iacra to reapply for your same certs - for me, straight Airplane MEL. I am getting my centerline thrust restriction removed next week at the FSDO. Here's the generic instructions I received:
Please arrive at least 10 minutes early and bring the following with you to your appointment:
1) Valid photo identification, such as a U.S. driver’s license, passport, and/or military ID
2) Military competency test results (later confirmed no retake is necessary, nor having results from long ago)
3) Official Armed Forces record, (e.g., NATOPS jacket for U.S. Navy/Marine Corps service-members)
4) Current airman and medical certification
5) Log Book(s)
6) IACRA information: Username, Password, and FTN
7) Print-out copy of new IACRA application
Hope this helps.