When is the url_rewrite_program called?

["David Parks" <davidparks21@xxxxxxxxx>]

When is the url_rewrite_program called?

Is it before ACL matches occur? Or after the http_access tag is matched?

I'm just trying to figure out the flow of events that occur.

Looking for an answer like:
	1) http_access is matched, if denied end
	2) url_rewrite_program called
	3) acls are matched a second time
	4) http_access is matched a second time

Thanks,
David