The GitHub Username Policy outlines how account names are allocated and managed on the platform. Usernames are given on a first-come, first-served basis and are meant for active use. If a desired username is taken, users are encouraged to try variations. The policy addresses trademark complaints, providing a process for users who believe their trademark is being infringed upon. Furthermore, GitHub enforces a name squatting policy preventing usernames from being reserved without intention for active use. Violations, such as attempting to sell a username, may result in suspension or renaming of the account. This document can be used by GitHub users to understand the guidelines and rules for choosing and managing usernames on the platform.