1. For the purpose of point (b) of Article 3 and point (d) of Article 4(2) the provisions governing Tier 2 instruments and Other Instruments shall comply with the procedures and timing laid down in paragraphs 2 to 14 for calculating the Common Equity Tier 1 capital ratio and the amounts to be written down, written up or converted. The provisions governing Additional Tier 1 instruments shall comply with the procedures laid down in paragraph 9 and point (c) of paragraph 13 in respect of amounts to be written down, written up or converted.