; and (iii) professional and non-profit organizations with expertise in amyotrophic lateral sclerosis. (e) Clarification Payment under subsection (d) shall be in addition to, and shall not supplant, any payment that would be otherwise made to a provider of services, physician, practitioner, supplier, or laboratory under any other provision of this title for an item or service furnished to a covered ALS individual. (f) Implementation (1) In general Except as provided under paragraph (2), the Secretary may implement the provisions of this section by program instruction or otherwise. (2) Rulemaking The Secretary shall implement subsections (c) and (d)(6) through notice and comment rulemaking. (g) Funding For purposes of carrying out this section and subject to subsection (e), payment under this section shall be made from the Federal Supplementary Medical Insurance Trust Fund under section 1841 or from the Federal Hospital Insurance Trust Fund under section 1817. . (b) Conforming amendments (1) Ensuring supplemental payments for ALS-related services Section 1833(t) of the Social Security Act ( 42 U.S.C. 1395(t) is amended by adding at the end the following new paragraph: (23) Ensuring supplemental payments for ALS-related services Any covered OPD service furnished to a covered ALS individual (as defined in section 1881B(b)) that is otherwise payable to a qualified provider (as defined in section 1881B(d)(6)) pursuant to paragraph (4) shall be payable under such paragraph notwithstanding any payment made under section 1881B(d). . (2) Definition of arrangements Section 1861(w)(1) of the Social Security Act ( 42 U.S.C. 1395x(w)(1) ) is amended by inserting qualified provider (as defined in section 1881B(d)(6)) with respect to ALS-related services (as defined in section 1881B(c)), before or hospice program . 4. Report on challenges with respect to the administration and staffing of amyotrophic lateral sclerosis clinical trials Not later than 90 days after the date of the enactment of this Act, the Secretary of Health and