(A) Presumption of continued underfunding In any case in which a benefit limitation under paragraph (1), (2), (3), or (4) has been applied to a plan with respect to the plan year preceding the current plan year, the adjusted funding target attainment percentage of the plan for the current plan year shall be presumed to be equal to the adjusted funding target attainment percentage of the plan for the preceding plan year until the enrolled actuary of the plan certifies the actual adjusted funding target attainment percentage of the plan for the current plan year.
(B) Presumption of underfunding after 10th month In any case in which no certification of the adjusted funding target attainment percentage for the current plan year is made with respect to the plan before the first day of the 10th month of such year, for purposes of paragraphs (1), (2), (3), and (4), such first day shall be deemed, for purposes of such paragraph, to be the valuation date of the plan for the current plan year and the plan's adjusted funding target attainment percentage shall be conclusively presumed to be less than 60 percent as of such first day.
(C) Presumption of underfunding after 4th month for nearly underfunded plans In any case in which—
(i) a benefit limitation under paragraph (1), (2), (3), or (4) did not apply to a plan with respect to the plan year preceding the current plan year, but the adjusted funding target attainment percentage of the plan for such preceding plan year was not more than 10 percentage points greater than the percentage which would have caused such paragraph to apply to the plan with respect to such preceding plan year, and
(ii) as of the first day of the 4th month of the current plan year, the enrolled actuary of the plan has not certified the actual adjusted funding target attainment percentage of the plan for the current plan year,
until the enrolled actuary so certifies, such first day shall be deemed, for purposes of such paragraph, to be the valuation date of the plan for the current plan year and the adjusted funding target attainment percentage of the plan as of such first day shall, for purposes of such paragraph, be presumed to be equal to 10 percentage points less than the adjusted funding target attainment percentage of the plan for such preceding plan year.