With this update, organization admins can manage billing settings for codespaces that are created for organization controlled repositories. Admins can choose to opt-in to the organization covering the bill for GitHub Codespaces, enable Codespaces access only for select members of the organization, allow for all organization members, or also include outside collaborators. See the screenshot below, and documentation for Enabling GitHub Codespaces for your organization for more details.

Organization Settings Billing UI

Note: The functionality of this interface remains the same. The label was updated to "Billing" where it used to be labeled "User permissions" to increase clarity. There are no changes required to your settings as a result of this update.

Any GitHub user who can clone a repository and has access to Codespaces will be able to create a codespace for it. To manage who can clone a repository in your Organization see Managing teams and people with access to your repository.