And don't forget that the provider of your charts is just giving you their interpretation of the procedure that they have copied from the relevant AIP - and often, they are wrong. My company recently switched from Jepps to Navtech and there were a lot of discrepancies - apparent because the FMC database is still being provided by Jepps. Checking every procedure against the AIP (no small job!) showed there were about as many errors in Jepps as there were NAVTECs.
The only authoritative document is the AIP, so I suggest you go and check it there. Your Ops department should have a copy.