> ## Documentation Index > Fetch the complete documentation index at: https://docs.useangie.com/llms.txt > Use this file to discover all available pages before exploring further. # Membership types > Define the categories members can belong to, and how long each lasts Membership types are the categories your association offers — for example, Regular, Lifetime, or Student — each with its own duration. Admin membership types page Create a type with a name and a duration (a fixed number of months, "Lifetime," or "Until graduation" for school-linked associations). The duration drives when a member's card shows as expired and when [renewal reminders](/admin-guide/members) go out. Editing or removing a type doesn't change the expiry already set for members already on it — it only affects new approvals going forward. This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.