; (ii) attests to the individual’s participation onsite in a test involving the atmospheric detonation of a nuclear device; (iii) is made subject to penalty for perjury; and (iv) is made by a person other than the individual filing the claim. (D) Participation in cleanup For purposes of this Act, the Attorney General shall accept a written affidavit or declaration as evidence to substantiate an individual’s participation onsite in the cleanup of Enewetak Atoll during the period beginning on January 1, 1977, and ending on December 31, 1980, if the affidavit— (i) is provided in addition to other material that may be used to substantiate the individual’s participation onsite in the cleanup of Enewetak Atoll during such period; (ii) attests to the individual’s participation onsite in the cleanup of Enewetak Atoll during such period; (iii) is made subject to penalty for perjury; and (iv) is made by a person other than the individual filing the claim. . (b) Guidelines for onsite participation in cleanup of Enewetak Atoll Subparagraph (C) of section 6(b)(2) is amended by striking under section 4(a)(2)(C) and inserting , or in the cleanup of Enewetak Atoll, under section 4(a)(2)(E) . (c) Technical and conforming amendments Section 6 is amended— (1) in subsection (c)(2)— (A) in subparagraph (A)— (i) in the first sentence, by striking subsection (a)(1), (a)(2)(A), or (a)(2)(B) of section 4 and inserting subsection (a)(1), (a)(2)(A), (a)(2)(B), (a)(2)(C), or (a)(2)(D) of section 4 ; and (ii) in clause (i), by striking subsection (a)(1), (a)(2)(A), or (a)(2)(B) of section 4 and inserting subsection (a)(1), (a)(2)(A), (a)(2)(B), (a)(2)(C), or (a)(2)(D) of section 4 ; and (B) in subparagraph (B), by striking section 4(a)(2)(C) and inserting section 4(a)(2)(E) ; (C) by adding or in the cleanup of Enewetak Atoll after detonation of a nuclear device