Work permit applications can be dropped off and processed throughout the week. They (Work permits) can be picked up on; Mondays, Tuesdays, Thursdays, and Fridays. The times for drop-off and pick-up are 7:45-7:55 a.m. and 8:40-8:50 a.m.
Generally speaking there is a one business day turnaround to process a permit. For example if you drop it off Monday morning, it would be ready Tuesday morning. However a Tuesday morning drop-off would make the permit ready for pick-up on Thursday as no permits are processed on Wednesdays.