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POSTRETIREMENT BENEFIT PLANS | 3 Months Ended
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Mar. 31, 2022
POSTRETIREMENT BENEFIT PLANS |
POSTRETIREMENT BENEFIT PLANS | NOTE H – POSTRETIREMENT BENEFIT PLANS ​ Supplemental Benefit and Postretirement Health Benefit Plans ​ The following is a summary of the components of net periodic benefit cost (credit): ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three Months Ended March 31 | ​
​ | ​ | Supplemental | ​ | Postretirement | ​
​ | ​ | Benefit Plan | ​ | Health Benefit Plan | ​
​ |  | 2022 |  | 2021 |  | 2022 |  | 2021 |
​ | ​ | (in thousands) | ​
Service cost | ​ | $ | — | ​ | $ | — | ​ | $ | 39 | ​ | $ | 48 | ​
Interest cost | ​ |  | 2 | ​ |  | 1 | ​ |  | 110 | ​ |  | 107 | ​
Amortization of net actuarial (gain) loss(1) | ​ |  | 2 | ​ |  | 2 | ​ |  | (191) | ​ |  | (137) | ​
Net periodic benefit cost (credit)(2) | ​ | $ | 4 | ​ | $ | 3 | ​ | $ | (42) | ​ | $ | 18 | ​
​ ​ ​
(1) | The Company amortizes actuarial gains and losses over the average remaining active service period of the plan participants and does not use a corridor approach.
(2) | Service cost is reported within operating expenses and the other components of net periodic benefit cost are reported within the other line item of other income (costs).
​ ​ Multiemployer Plans ​ ABF Freight System, Inc. and certain other subsidiaries reported in the Company’s Asset-Based operating segment (“ABF Freight”) contribute to multiemployer pension and health and welfare plans, which have been established pursuant to the Taft-Hartley Act, to provide benefits for its contractual employees. The 25 multiemployer pension plans to which ABF Freight contributes vary greatly in size and in funded status. Contributions to these plans are based generally on the time worked by ABF Freight’s contractual employees at rates specified in the 2018 ABF NMFA and other related supplemental agreements. ABF Freight recognizes as expense the contractually required contributions for each period and recognizes as a liability any contributions due and unpaid. The funding obligations to the multiemployer pension plans are intended to satisfy the requirements imposed by the Pension Protection Act of 2006, which was permanently extended by the Multiemployer Pension Reform Act (the “Reform Act”) included in the Consolidated and Further Continuing Appropriations Act of 2015. ​ On March 11, 2021, H.R.1319, the American Rescue Plan Act of 2021 (the “American Rescue Plan Act”) was signed into law. The American Rescue Plan Act includes the Butch Lewis Emergency Pension Plan Relief Act of 2021 (the “Pension Relief Act”). The Pension Relief Act includes provisions to improve funding for multiemployer pension plans, including financial assistance provided through the Pension Benefit Guarantee Corporation (the “PBGC”) to qualifying underfunded plans to secure pension benefits for plan participants. Without the funding to be provided by the Pension Relief Act, many of the multiemployer pension funds to which ABF Freight contributes, including the Central States Pension Plan, could become insolvent in the near future; however, ABF Freight would continue to be obligated to make contributions to those funds under the terms of the 2018 ABF NMFA. ​ On July 9, 2021, the PBGC announced an interim final rule implementing a Special Financial Assistance Program (the “SFA Program”) to administer funds to severely underfunded eligible multiemployer pension plans under the Pension Relief Act. Through the term of the 2018 ABF NMFA, which extends through June 30, 2023, ABF Freight’s multiemployer pension contribution obligations generally will be satisfied by making the specified contributions when due. Future contribution rates will be determined through the negotiation process for contract periods following the term of the current collective bargaining agreement. While the Company cannot determine with any certainty the contributions that will be required under future collective bargaining agreements for ABF Freight’s contractual employees, management believes future contribution rates to multiemployer pension plans may be less likely to increase as a result of the provisions of the Pension Relief Act. If ABF Freight were to completely withdraw from certain multiemployer pension plans, under current law, ABF Freight would have material liabilities for its share of the unfunded vested liabilities of each such plan. ​ The multiemployer plan administrators have provided to the Company no significant changes in information related to multiemployer plans from the information disclosed in the Company’s 2021 Annual Report on Form 10-K.

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