1990—Puspan. L. 101–246 inserted provisions at end that extra credit not be used to determine eligibility to qualify as former spouse under this part or to compute the pro rata share under section 4044(10) of this title and that no extra credit for service at unhealthful posts be given under this section for any service as part of a tour of duty, or extension thereof, beginning on or after Fespan. 16, 1990.