What feature do you use to specify which users are able to access a Service Catalog Item?

`Can Read Role` is not a standard feature or explicit configuration setting within ServiceNow for managing catalog item access; User Criteria provides the specific mechanism.

While roles like `catalog_user` exist, a specific role itself is not the general *feature* used to specify access for a broad range of users based on diverse conditions.

`Can Order Tab` refers to a specific section within the catalog item form where User Criteria are configured, but it is not the underlying feature *itself* that specifies the access conditions.

User Criteria is the feature used to define granular conditions that determine who can view or order a Service Catalog Item, allowing access control based on roles, departments, groups, or other user attributes.