(29)At least every three years the Commission should undertake a review of the grounds on the basis of which this Decision was adopted, including the legal and supervisory arrangements applicable in Singapore to markets operated by AEs or RMOs authorised in Singapore. Such regular reviews are without prejudice to the Commission's power to undertake a specific review at any time where relevant developments make it necessary for the Commission to re-assess the determination made by this Decision. Based on the findings arising from a regular or specific review, the Commission may decide to amend, or repeal this Decision at any time, in particular where developments affect the conditions on the basis of which this Decision is adopted.