As an auditee, can I expect submissions that are "in progress" in the Census system to be transferred to the new system?

No. If you start a submission on the Census system, you will need to complete it there. You must fully submit any draft to the Census FAC before September 30, 2023.

Otherwise, you may need to completely restart your submission at the new GSA FAC. Click here to access/bookmark the future GSA FAC site, and get updates about the transition.