On Jeppesen approach plates, with a non-precision approach. When can you descend to the initial altitude on the approach plate if you are cleared for the approach? I know the NOS charts depict the 10NM ring around either the final approach fix or the initial approach fix and you can descend when established inbound and remain within 10NM... However the Jepp plates do not have this ring. Is there a way to know when you can descend to that initial approach altitude when cleared for the approach using Jepp plates? Thanks.