- AAMC ID: Eight-digit identification number assigned to each user of AAMC products and services.
- Letter ID: Eight-digit identification number assigned to each letter entry on your AMCAS application.
- Letter Request Form: PDF generated by you in the AMCAS application for your designated letter authors, with your mailing address, AAMC ID, Letter ID, and information about submitting letters to the AMCAS program.