06-3571. Required Interest Rate Assumption for Determining Variable-Rate Premium for Single-Employer Plans; Interest on Late Premium Payments; Interest on Underpayments and Overpayments of Single-Employer Plan Termination Liability and Multiemployer ...

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 April 2006. The interest assumptions for performing multiemployer plan valuations following mass withdrawal under part 4281 apply to valuation dates occurring in May 2006. The interest rates for late premium payments under part 4007 and for underpayments and overpayments of single-employer plan termination liability under part 4062 and multiemployer withdrawal liability under part 4219 apply to interest accruing during the second quarter (April through June) of 2006.

FOR FURTHER INFORMATION CONTACT:

Catherine B. Klion, Attorney, Legislative and Regulatory Department, 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. The required interest rate is the “applicable percentage” (currently 85 percent) of the annual yield on 30-year Treasury securities for the month preceding the beginning of the plan year for which premiums are being paid (the “premium payment year”). The required interest rate to be used in determining variable-rate premiums for premium payment years beginning in April 2006 is 4.02 percent (i.e., 85 percent of the 4.73 percent Treasury Securities Rate for March 2006).

The Pension Funding Equity Act of 2004 (“PFEA”)—under which the required interest rate is 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—applies only for premium payment years beginning in 2004 or 2005. Congress is considering legislation that would extend the PFEA rate for one more year. If legislation that changes the rules for determining the required interest rate for plan years beginning in April 2006 is adopted, the PBGC will promptly publish a Federal Register notice with the new rate.

The following table lists the required interest rates to be used in determining variable-rate premiums for premium payment years beginning between May 2005 and April 2006.

For premium payment years beginning in:	The required interest rate is: (percent)
May 2005	4.72
June 2005	4.60
July 2005	4.47
August 2005	4.56
September 2005	4.61
October 2005	4.62
November 2005	4.83
December 2005	4.91
January 2006	3.95
February 2006	3.90
March 2006	3.89
April 2006	4.02

Late Premium Payments; Underpayments and Overpayments of Single-Employer Plan Termination Liability

Section 4007(b) of ERISA and section 4007.7(a) of the PBGC's regulation on Payment of Premiums (29 CFR part 4007) require the payment of interest on late premium payments at the rate established under section 6601 of the Internal Revenue Code. Similarly, section 4062.7 of the PBGC's regulation on Liability for Termination of Single-Employer Plans (29 CFR part 4062) requires that interest be charged or credited at the section 6601 rate on underpayments and overpayments of employer liability under section 4062 of ERISA. The section 6601 rate is established periodically (currently quarterly) by the Internal Revenue Service. The rate applicable to the second quarter (April through June) of 2006, as announced by the IRS, is 7 percent.

The following table lists the late payment interest rates for premiums and employer liability for the specified time periods:

From—	Through—	Interest rate (percent)
4/1/00	3/31/01	9
4/1/01	6/30/01	8
7/1/01	12/31/01	7
1/1/02	12/31/02	6
1/1/03	9/30/03	5
10/1/03	3/31/04	4
4/1/04	6/30/04	5
7/1/04	9/30/04	4
10/1/04	3/31/05	5
4/1/05	9/30/05	6
10/1/05	6/30/06	7

Underpayments and Overpayments of Multiemployer Withdrawal Liability

Section 4219.32(b) of the PBGC's regulation on Notice, Collection, and Redetermination of Withdrawal Liability (29 CFR part 4219) specifies the rate at which a multiemployer plan is to charge or credit interest on underpayments and overpayments of withdrawal liability under section 4219 of ERISA unless an applicable plan provision provides otherwise. For interest accruing during any calendar quarter, the specified rate is the average quoted prime rate on short-term commercial loans for the fifteenth day (or the next business day if the fifteenth day is not a business day) of the month preceding the beginning of the quarter, as reported by the Board of Governors of the Federal Reserve System in Statistical Release H.15 (“Selected Interest Rates”). The rate for the second quarter (April through June) of 2006 (i.e., the rate reported for March 15, 2005) is 7.50 percent.

The following table lists the withdrawal liability underpayment and overpayment interest rates for the specified time periods:

From—	Through—	Interest rate (percent)
4/1/00	6/30/00	8.75
7/1/00	3/31/01	9.50
4/1/01	6/30/01	8.50
7/1/01	9/30/01	7.00
10/1/01	12/31/01	6.50
1/1/02	12/31/02	4.75
1/1/03	9/30/03	4.25
10/1/03	9/30/04	4.00
10/1/04	12/31/04	4.50
1/1/05	3/31/05	5.25
4/1/05	6/30/05	5.50
7/1/05	9/30/05	6.00
10/1/05	12/31/05	6.50
1/1/06	3/31/06	7.25
4/1/06	6/30/06	7.50

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 May 2006 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 7th day of April 2006.

Vincent K. Snowbarger,

Deputy Executive Director, Pension Benefit Guaranty Corporation.