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 Pension Benefit Guaranty Corporation
 AGENCY: Pension Benefit Guaranty Corporation.
 ACTION: Notice of interest rates and assumptions.
 SUMMARY: This notice informs the public of the interest rates and assumptions to be used under certain Pension Benefit Guaranty Corporation regulations. These rates and assumptions are published elsewhere (or can be derived from rates published elsewhere), but are collected and published in this notice for the convenience of the public. Interest rates are also published on the PBGC's Web site (
                        *http://www.pbgc.gov*).
 DATES: The required interest rate for determining the variable-rate premium under part 4006 applies to premium payment years beginning in December 2004. The interest assumptions for performing multiemployer plan valuations following mass withdrawal under part 4281 apply to valuation dates occurring in January 2005.
 FOR FURTHER INFORMATION CONTACT: Harold J. Ashner, Assistant General Counsel, Office of the General Counsel, Pension Benefit Guaranty Corporation, 1200 K Street, NW., Washington, DC 20005, 202-326-4024. (TTY/TDD users may call the Federal relay service toll-free at 1-800-877-8339 and ask to be connected to 202-326-4024.)


SUPPLEMENTARY INFORMATION: Variable-Rate Premiums Section 4006(a)(3)(E)(iii)(II) of the Employee Retirement Income Security Act of 1974 (ERISA) and § 4006.4(b)(1) of the PBGC's regulation on Premium Rates (29 CFR part 4006) prescribe use of an assumed interest rate (the “required interest rate”) in determining a single-employer plan's variable-rate premium. Pursuant to the Pension Funding Equity Act of 2004, for premium payment years beginning in 2004 or 2005, the required interest rate is the “applicable percentage” (currently 85 percent) of the annual rate of interest determined by the Secretary of the Treasury on amounts invested conservatively in long-term investment grade corporate bonds for the month preceding the beginning of the plan year for which premiums are being paid. Thus, the required interest rate to be used in determining variable-rate premiums for premium payment years beginning in December 2004 is 4.75 percent (
                    *i.e.*, 85 percent of the 5.59 percent composite corporate bond rate for November 2004 as determined by the Treasury). The following table lists the required interest rates to be used in determining variable-rate premiums for premium payment years beginning between January 2004 and December 2004. For premium payment years beginning in:
The required interest rate is:January 2004
4.94February 2004
4.83March 2004
4.79April 2004
4.62May 2004
4.98June 2004
5.26July 2004
5.25August 2004
5.10September 2004
4.95October 2004
4.79November 2004
4.73December 2004
4.75
 Multiemployer Plan Valuations Following Mass Withdrawal The PBGC's regulation on Duties of Plan Sponsor Following Mass Withdrawal (29 CFR part 4281) prescribes the use of interest assumptions under the PBGC's regulation on Allocation of Assets in Single-Employer Plans (29 CFR part 4044). The interest assumptions applicable to valuation dates in January 2005 under part 4044 are contained in an amendment to part 4044 published elsewhere in today's 
                    **Federal Register**
                    . Tables showing the assumptions applicable to prior periods are codified in appendix B to 29 CFR part 4044. Issued in Washington, DC, on this 9th day of December 2004. Joseph H. Grant, Deputy Executive Director and Chief Operating Officer, Pension Benefit Guaranty Corporation.


[FR Doc. 04-27444 Filed 12-14-04; 8:45 am] BILLING CODE 7708-01-P