ckanext-restricted restricts the accessibility to the resources of a dataset. Package metadata remains accessible but not the data itself. The resource access restriction level can be individually defined for every package with levels: public, registered, any_organization, same_organization, only_allowed_users. Users can request access by pressing a button and filling a form. Package owners can allow individual users to access resources, with email notification. Includes mail notification on new user registration (can be disabled). Mails are generated from customizable templates. All restricted field information (except ‘level’) is hidden from unauthorized users. Originally developed for CKAN 2.5.2 and compatible through 2.11.x. Requires ckanext-scheming, ckanext-repeating, and ckanext-composite. Actively maintained by EnviDat (WSL, Switzerland).