(a)

(1)

(A) Except as provided in subparagraph (B), in the case of a right provided pursuant to an employee pension benefit plan (including those described in sections 3(2) and 3(33) of the Employee Retirement Income Security Act of 1974) or a right provided under any Federal or State law governing pension benefits for governmental employees, the right to pension benefits of a person reemployed under this chapter shall be determined under this section.

(B) In the case of benefits under the Thrift Savings Plan, the rights of a person reemployed under this chapter shall be those rights provided in section 8432b of title 5. The first sentence of this subparagraph shall not be construed to affect any other right or benefit under this chapter.

(2)

(A) A person reemployed under this chapter shall be treated as not having incurred a break in service with the employer or employers maintaining the plan by reason of such person's period or periods of service in the uniformed services.

(B) Each period served by a person in the uniformed services shall, upon reemployment under this chapter, be deemed to constitute service with the employer or employers maintaining the plan for the purpose of determining the nonforfeitability of the person's accrued benefits and for the purpose of determining the accrual of benefits under the plan.

(b)

(1) 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—

(A) by the plan in such manner as the sponsor maintaining the plan shall provide; or

(B) if the sponsor does not provide—

(i) to the last employer employing the person before the period served by the person in the uniformed services, or

(ii) if such last employer is no longer functional, to the plan.

(2) A person reemployed under this chapter shall be entitled to accrued benefits pursuant to subsection (a) that are contingent on the making of, or derived from, employee contributions or elective deferrals (as defined in section 402(g)(3) of the Internal Revenue Code of 1986) only to the extent the person makes payment to the plan with respect to such contributions or deferrals. No such payment may exceed the amount the person would have been permitted or required to contribute had the person remained continuously employed by the employer throughout the period of service described in subsection (a)(2)(B). Any payment to the plan described in this paragraph shall be made during the period beginning with the date of reemployment and whose duration is three times the period of the person's service in the uniformed services, such payment period not to exceed five years.

(3) 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—

(A) at the rate the employee would have received but for the period of service described in subsection (a)(2)(B), or

(B) in the case that the determination of such rate is not reasonably certain, on the basis of the employee's average rate of compensation during the 12-month period immediately preceding such period (or, if shorter, the period of employment immediately preceding such period).

(c) Any employer who reemploys a person under this chapter and who is an employer contributing to a multiemployer plan, as defined in section 3(37) of the Employee Retirement Income Security Act of 1974, under which benefits are or may be payable to such person by reason of the obligations set forth in this chapter, shall, within 30 days after the date of such reemployment, provide information, in writing, of such reemployment to the administrator of such plan.