4281.13—Benefit valuation methods—in general.
Except as otherwise provided in § 4281.16 (regarding plans that are closing out), the plan sponsor shall value benefits as of the valuation date by—
(a)
Using the interest assumptions described in Table I of appendix B to part 4044 of this chapter ;
(d)
Applying valuation formulas that accord with generally accepted actuarial principles and practices; and
(e)
Adjusting the values to reflect the loading for expenses in accordance with appendix C to part 4044 of this chapter (substituting the term “benefits” for the term “benefit liabilities (as defined in 29 U.S.C. § 1301(a)(16) )”).