PUBLIC LAW 102-86—AUG. 14, 1991 105 STAT. 415 effective date of the readjustment to be reduced unless an improvement in the veteran's disability is shown to have occurred.". (b) EFFECTIVE DATE.—The amendment made by subsection (a) 38 USC 1155 shall apply with regard to changes in rating schedules that take "**'*• effect after the date of the enactment of this Act. SEC. 104. PRESUMPTIVE PERIOD FOR OCCURRENCE OF LEUKEMIA IN VETERANS EXPOSED TO RADIATION. (a) CHANGE IN PRESUMPTIVE PERIOD. —Section 312(c)(3) is amended 38 USC 1112. by striking out ", except that" and all that follows through "leukemia)". (b) EFFECTIVE DATE. —No benefit may be paid by reason of the 38 USC 1112 amendment made by subsection (a) for any period before the date of "°*®- the enactment of this Act. SEC. 105. PRESUMPTION OF SERVICE-CONNECTION FOR CERTAIN RADI- ATION-EXPOSED RESERVISTS. Section 312(c) is amended— 38 USC 1112. (1) in paragraph (1)— (A) by striking out "during the veteran's service on active duty" and inserting in lieu thereof "during active military, naval, or air service"; and (B) by striking out "during the period" and inserting in lieu thereof "during a period; and (2) in paragraph (4)(A)— (A) by inserting "(i)" after "means"; and (B) by inserting before the period at the end the following: ", or (ii) an individual who, while a member of a reserve component of the Armed Forces, participated in a radiation-risk activity during a period of active duty for training or inactive duty training^". TITLE II—LIFE INSURANCE PROGRAMS SEC. 201. NATIONAL SERVICE LIFE INSURANCE PROGRAM. (a) EXTENSION.—Subsections (a) and (b)(1) of section 722 are 38 USC 1922. amended— (1) by striking out "one year" each place it appears and inserting in lieu thereof "two years"; and (2) by striking out "one-year" each place it appears and inserting in lieu thereof "two-year". (b) EFFECTIVE DATE.—The amendments made by subsection (a) 38 USC 1922 shall apply with respect to any person who, on or after September 1, "°*®- 1991, is found by the Secretary of Veterans Affairs to be eligible for insurance under section 722 of title 38, United States Code. SEC. 202. PAYMENT OF SERVICE DISABLED VETERANS' INSURANCE IN LUMP SUM. (a) PAYMENT IN LUMP SUM. — Section 722(b) is amended— 38 USC 1922. (1) by striking out paragraph (4) and inserting in lieu thereof the following: "(4) Notwithstanding the provisions of section 717 of this title, insurance under this subsection shall be payable to the beneficiary determined under paragraph (2) of this subsection in a lump sum.'; and (2) by striking out paragraph (5).