Thanks for the reply!!
Hm, is the acceptance letter from the GSAS different from the offer letter from my department? My offer letter had no such information in it.
Anyone considering Columbia? I missed out on Recruitment Weekend but visited a couple weeks later and was accepted into the program. However, I would love to talk to other people who went to interview and are considering attending - it was weird to go there by myself and not meet with any other prospectives!