...
Columbia has Business Associate Agreement (BAA) with AWS, so if you are a faculty member or administrator who uses AWS for Columbia purposes, your AWS account is required to go through the CUIT. Student and personal AWS accounts are not covered under the enterprise agreement.
You will need a chartstring to request an account and there is a good deal of documentation to read, including what is and is not permitted to use a Columbia AWS to do.
Columbia AWS resources
Direct Connect - The Columbia campus network has a 10Gb dedicated link to which connects to AWS US-East-1 enabling faster transfers as well as discounts on data egress charges.
...