Employee pension benefit plans

An employer reemploying a person under this chapter shall, with respect to a period of service described in subsection (a)(2)(B), be liable to an employee pension benefit plan for funding any obligation of the plan to provide the benefits described in subsection (a)(2) and shall allocate the amount of any employer contribution for the person in the same manner and to the same extent the allocation occurs for other employees during the period of service. For purposes of determining the amount of such liability and any obligation of the plan, earnings and forfeitures shall not be included. For purposes of determining the amount of such liability and for purposes of section 515 of the Employee Retirement Income Security Act of 1974 or any similar Federal or State law governing pension benefits for governmental employees, service in the uniformed services that is deemed under subsection (a) to be service with the employer shall be deemed to be service with the employer under the terms of the plan or any applicable collective bargaining agreement. In the case of a multiemployer plan, as defined in section 3(37) of the Employee Retirement Income Security Act of 1974, any liability of the plan described in this paragraph shall be allocated— if the sponsor does not provide— For purposes of computing an employer’s liability under paragraph (1) or the employee’s contributions under paragraph (2), the employee’s compensation during the period of service described in subsection (a)(2)(B) shall be computed—