2U.K.Such adjustments or changes shall be subject to notice, which should be arranged in accordance with regional practice, where such practice exists, and there shall be consultations in accordance with the provisions of this Code between the conference concerned and the other parties directly affected and prescribed in this Code as entitled to participate in consultations, save in those exceptional circumstances which warrant immediate imposition of the currency adjustment factor or freight-rate change. In the event that this has been done without prior consultations, consultations shall be held as soon as possible thereafter. The consultations should be on the application, size and date of implementation of the currency adjustment factor or freight-rate change, and the same procedures shall be followed for this purpose as are prescribed in article 16, paragraphs 4 and 5, in respect of surcharges. Such consultations should take place and be completed within a period not exceeding 15 days from the date when the intention to apply a currency surcharge or to effect a freight-rate change is announced.