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Part III. Administrative, Procedural, and Miscellaneous
Internal Revenue Bulletin 1999-31 · 2026-10-03 edition · updated 2026-10-04 · United States
Weighted Average Interest Rate Update
Notice 99–38
Notice 88–73 provides guidelines for determining the weighted average interest rate and the resulting permissible range of
interest rates used to calculate current liability for the purpose of the full funding limitation of § 412(c)(7) of the Internal Revenue Code as amended by the Omnibus Budget Reconciliation Act of 1987 and as further amended by the Uruguay Round Agreements Act, Pub. L. 103–465 (GATT).
The average yield on the 30-year Treasury Constant Maturities for June 1999 is 6.04 percent. The following rates were determined for the plan years beginning in the month shown below.
90% to 105% 90% to 110% Weighted Permissible Permissible Month Year Average Range Range
July 1999 6.03 5.42 to 6.33 5.42 to 6.63
Drafting Information
The principal author of this notice is Todd Newman of the Employee Plans Division. For further information regarding this notice, call (202) 622-6076 between 2:30 and 3:30 p.m. Eastern time (not a toll-free number). Mr. Newman’s number is (202) 622-8458 (also not a toll-free number).
Rev. Proc. 99–29
Use this revenue procedure to prepare Tax Year 1999 and prior year information returns for submission to Internal Revenue Service (IRS) using any of the following:
Part B. Magnetic Media Specifications
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