1. Supervised entities must not use an Article 23A benchmark, except where permitted to do so under paragraph 2 or Article 23C.
2. The FCA may, by publishing a notice before the day on which the designation of the benchmark under Article 23A takes effect, provide that the prohibition in paragraph 1 does not take effect until a date specified in the notice.
3. The date specified in a notice under paragraph 2 must fall before the end of the period of four months beginning with the day on which the designation of the benchmark under Article 23A takes effect.
4. A notice published under this Article must be published in the way appearing to the FCA to be best calculated to bring it to the attention of -
(a) supervised entities, and
(b) the public.
5. The FCA may charge a reasonable fee for providing a person with a copy of a notice published under this Article.