Section 4281.13 - Benefit valuation methods-in generalExcept as otherwise provided in § 4281.16 (regarding plans that are closing out), the plan sponsor must 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;(b) Using the mortality assumptions under § 4044.53 of this chapter;(c) Using interpolation methods, where necessary, at least as accurate as linear interpolation;(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) )").61 FR 34118, July 1, 1996, as amended at 63 FR 38307, July 16, 1998; 84 FR 18726, May 2, 2019