I'm mainly just echoing the other comments, but what you are talking about is not a charter. (At least in the PMBOK sense).
It sounds like you are probably talking about a project plan. (Or perhaps a project operations definition document that is not closely associated with any one project).
Keep in mind that there are several steps to project management, each has deliverables and can be broken down to specific chunks of information.
Chartering precedes project planning which includes, but is not identical to, project scheduling.
As someone said above, the charter is about authorization, mission, scope, risks, key personnel, etc. It is not a plan for how to execute. Nor is it the schedule of the execution of that plan.
Keeping the stages and deliverables clear is important to starting the project off with as much clarity as possible. And maintaining clarity is critical to team performance, agility, access to resources, etc.
Good luck with the project!