25.1. The person or body empowered to amend a multi-employer pension plan referred to in section 21 may, in writing, instruct the pension committee that administers the plan to take one or more of the following measures for the purposes of the first complete actuarial valuation of the plan dated after 30 December 2009:(1) the application of an asset valuation method that, in accordance with the terms and conditions of section 25.2, levels the short-term fluctuations in the market value of the assets of the plan for the purposes of determining the value of those assets on a solvency basis;
(2) the extension, to 31 December 2015 at the latest, of the period provided for in subparagraph a of paragraph 4 of section 24 to amortize any solvency deficiency determined as at 31 December 2009 or thereafter.