1. Institutions shall assign extensions and changes to the use of their alternative internal models to one of the following categories:
material extensions and changes to the use of alternative internal models, identified in accordance with Article 2(1) and (2), which require permission from the competent authorities;
non-material extensions and changes to the use of alternative internal models, which require notification to the competent authorities.
2. Institutions shall assign non-material extensions and changes to the use of their alternative internal models as referred to in paragraph 1, point (b), to one of the following sub-categories:
extensions and changes, identified in accordance with Article 3(1) and (2), to be notified with additional information;
extensions and changes to be notified with basic information.