5 C.F.R. § 841.407

(a) No later than 5 years after the publication of a current notice of normal cost percentages, OPM will publish in the Federal Register a notice that will contain updated normal cost percentages.

(b) The notice of normal cost percentage will include a statement of—

(1) The normal cost percentages and any single agency rates for each category of employees;

(2) The effective date of any changes made by the notice;

(3) The address for obtaining information on the data and assumptions used in computing the normal cost percentages;

(4) The time limit for submission of appeals under § 841.409; and

(5) The address for filing an appeal under § 841.409.