21. In the circumstances when an insolvency practitioner or the official receiver is appointed and acts as described in Part I of the Pensions Act 1995(1), any powers under the Scheme which are vested in the Trustees, the Administrator or any of the Employers and which are exercisable at their discretion shall, to the extent set out in that Part, be exercisable by one or more Trustees who are independent trustees for the purposes of that Part.