Pub. L. 100-238, tit. II, pt. B, sec. 213
COMPUTATION OF ANNUITIES.
SEC. 213. COMPUTATION OF ANNUITIES. (a) Joint Election to Waive Survivor Annuity With Respect to a Former Spouse.— Subparagraph (C) of section 806(b)(1) (22 U.S.C. 4046(b)(1)) is amended by striking out “12-month” and inserting in lieu thereof “24-month”. (b) Recall Service.— Paragraph (2) of section 806(i) (22 U.S.C. 4046 (i)) is amended by striking out “section 814(b)” and inserting in lieu thereof “this subchapter”.