21.The provisions of Division II of this Regulation cease to apply in respect of a pension plan on the earlier of the following dates:
(1) the date of the first actuarial valuation showing that the plan is solvent;
(2) the date fixed in a writing giving instructions to that effect and sent to the pension committee by the employer that is a party to the pension plan or, in the case of a multi-employer pension plan, even not considered as such under section 11 of the Act, by the person or body empowered to amend the plan. That date shall fall on the date on which a fiscal year of the plan ends; or
(3) the date of the end of the plan’s first fiscal year beginning after 31 December 2012.