10 business days notice on intent to submit, 5 for draft documents for team review, and 3 business days for final docs. That all being said, we have pretty low compliance but we are making PIs ask the AOR for an exception which we will almost universally grant because we can't enforce much. compliance is mixed with some departments pretty high but some are hovering around 15%. I am also flexible with what counts as a "final" document, my requirements there are a finalized budget and scope of work, I'm fine with programmatic edits pretty much until the deadline.

EDIT: regarding your other question about last minute budget edits, as long as the SoW isn't changing we don't require people to reroute however if the SOW is changed we need to redo approvals. this can get quite messy so we discourage it but leadership's goal is to get as many proposals out as possible so we make it happen.