4. Subject to article 3(3)(a) and (b) where an appeal lies to a Child Support or Social Security Commissioner from any decision made before 3rd November 2008 by a tribunal listed in Table 1 of Schedule 1, section 11 of the 2007 Act (right to appeal to Upper Tribunal) shall apply as if the decision were a decision made on or after 3rd November 2008 by the First-tier Tribunal.