1. Competent authorities shall require credit institutions to hold own funds against operational risk in accordance with the approaches set out in Articles 103, 104 and 105.
2. Without prejudice to paragraph 4, credit institutions that use the approach set out in Article 104 shall not revert to the use of the approach set out in Article 103, except for demonstrated good cause and subject to approval by the competent authorities.
3. Without prejudice to paragraph 4, credit institutions that use the approach set out in Article 105 shall not revert to the use of the approaches set out in Articles 103 or 104 except for demonstrated good cause and subject to approval by the competent authorities.
4. Competent authorities may allow credit institutions to use a combination of approaches in accordance with Annex X, Part 4.