; (2) by inserting before the period at the end the following: , including the amounts necessary to carry out the requirements of section 3681A ; and (3) by adding at the end the following: (b) Administrative costs for department of energy There is authorized and hereby appropriated to the Secretary of Energy for fiscal year 2021 and each succeeding year such sums as may be necessary to support the Secretary in carrying out the requirements of this title, including section 3681A. . (d) Extending the authorization of the EEOICPA ombudsman Section 3686(h) of the Energy Employees Occupational Illness Compensation Program Act of 2000 ( 42 U.S.C. 7385s–15(h) ) is amended by striking October 28, 2019 and inserting October 28, 2024 . (e) Advisory board on toxic substances and worker health Section 3687 of the Energy Employees Occupational Illness Compensation Program Act of 2000 ( 42 U.S.C. 7385s–16 ) is amended— (1) in subsection (b)— (A) in paragraph (1)(F), by striking and after the semicolon; (B) in paragraph (2), by striking the period at the end and inserting a semicolon; and (C) by adding at the end the following: (3) develop recommendations for the Secretary of Health and Human Services regarding— (A) whether there is a class of Department of Energy employees, Department of Energy contractor employees, or other employees at any Department of Energy facility who were at least as likely as not exposed to toxic substances at that facility but for whom it is not feasible to estimate with sufficient accuracy the dose they received; and (B) the conditions or requirements that should be met in order for an individual to be designated as a member of the Special Exposure Cohort under section 3671A; and (4) review all existing, as of the date of the review, rules and guidelines issued by the Secretary regarding presumption of causation and provide the Secretary with recommendations for new rules and guidelines regarding presumption of causation. ; (2) in subsection (c)(3), by inserting or the Board after The Secretary