; (B) in subparagraph (B), by striking section 4(a)(2)(C) and inserting section 4(a)(2)(E) ; and (C) by adding or in the cleanup of Enewetak Atoll after detonation of a nuclear device ; and (2) in subsection (e)— (A) 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) by inserting or in the cleanup of Enewetak Atoll after detonation of a nuclear device . (d) Regulations (1) In general Section 6(k) of the Radiation Exposure Compensation Act ( Public Law 101–426 ; 42 U.S.C. 2210 note) is amended by adding at the end the following: Not later than 180 days after the date of enactment of the Radiation Exposure Compensation Act Amendments of 2019 , the Attorney General shall issue revised regulations to carry out this Act. . (2) Considerations in revisions In issuing revised regulations under section 6(k) of the Radiation Exposure Compensation Act ( Public Law 101–426 ; 42 U.S.C. 2210 note), as amended under paragraph (1), the Attorney General shall ensure that procedures with respect to the submission and processing of claims under such Act take into account and make allowances for the law, tradition, and customs of Indian tribes, including by accepting as a record of proof of physical presence for a claimant a grazing permit, a homesite lease, a record of being a holder of a post office box, a letter from an elected leader of an Indian tribe, or a record of any recognized tribal association or organization. 7. Limitation on claims (a) Extension of filing time Section 8(a) of the Radiation Exposure Compensation Act ( Public Law 101–426 ; 42 U.S.C. 2210 note) is amended by striking 22 years and inserting 45 years . (b) Resubmittal of claims Section 8(b) of the Radiation Exposure Compensation Act ( Public Law 101–426