4. For the purposes of the first complete actuarial valuation of a pension plan undertaken after 30 December 2008, the following rules apply:(1) amortization payments remaining to be paid on the valuation date and related to the technical actuarial deficiency determined pursuant to paragraph 3 of section 126 of the Act in its version prior to 1 January 2010 are deemed to be amortization payments related to a technical actuarial deficiency within the meaning of paragraph 1 of section 135 of the Act as replaced by section 20 of this Regulation;
(2) amortization payments remaining to be paid on the valuation date and related to the initial deficiency and to a improvement unfunded actuarial liability determined pursuant to paragraphs 1 and 2 of section 126 of the Act in its version prior to 1 January 2010 are deemed to be amortization payments related to an improvement unfunded actuarial liability within the meaning of paragraph 2 of section 135 of the Act as replaced by section 20 of this Regulation.