With the CBB's prior written approval, an Islamic bank licensee with the necessary capability may use the more accurate "duration" method. This method calculates the price sensitivity of each position of Sukuk held separately. This method must be used consistently by an Islamic bank licensee, unless a change is approved by the CBB. The steps involved in the calculation using this method are outlined in Paragraphs CA-5.4.3B to CA-5.4.3D.