When do schools send secondary applications?

Current Timeline: - Submit to one school in early June for verification - Submit to remaining schools around July 4 (ideally, I will already be verified by this time) When can I expect to receive my secondary applications? Also, my university says they don't submit my committee letter packet until mid-September. Will this delay my application to med schools or potential interview invitations?
Source: Student Doctor Network - Category: Universities & Medical Training Authors: Source Type: forums