(a) Notwithstanding any contrary provisions of this chapter, with respect to qualified military service, contributions shall be made and benefits and service credit shall be provided in accordance with 26 U.S.C. 414(u).

(b) To the extent required by 26 U.S.C. 401(a)(37), if a member dies while performing qualified military service, as defined in 38 U.S.C. 43, the survivors of the member are entitled to any additional benefits that would have been provided to the survivors under the plan had the member resumed employment and then terminated employment on account of death. For purposes of this subsection, periods of qualified military service are not included in calculations of credited service.

(c) Consistent with and to the extent required by 26 U.S.C. 414(u)(12), a member receiving differential wage payments from an employer shall be treated as employed by that employer, and the differential wage payment shall be treated as compensation for purposes of applying the limits on annual additions under 26 U.S.C. 415(b). For purposes of this subsection, “differential wage payment” means any payment that

(1) is made by an employer to an individual with respect to any period during which the individual is performing service in the uniformed services, as defined in 38 U.S.C. 43, while on active duty for a period of more than 30 days; and

(2) represents all or a portion of the wages the individual would have received from the employer if the individual were performing service for the employer.