(1) The Commissioner is authorized to waive any of the requirements, conditions, or limitations of subchapter XVI of this chapter (or to waive them only for specified purposes, or to impose additional requirements, conditions, or limitations) to such extent and for such period as the Commissioner finds necessary to carry out one or more experimental, pilot, or demonstration projects which, in the Commissioners judgment, are likely to assist in promoting the objectives or facilitate the administration of such subchapter. Any costs for benefits under or administration of any such project (including planning for the project and the review and evaluation of the project and its results), in excess of those that would have been incurred without regard to the project, shall be met by the Commissioner from amounts available to the Commissioner for this purpose from appropriations made to carry out such subchapter. The costs of any such project which is carried out in coordination with one or more related projects under other subchapters of this chapter shall be allocated among the appropriations available for such projects and any Trust Funds involved, in a manner determined by the Commissioner with respect to the old-age, survivors, and disability insurance programs under subchapter II of this chapter and the supplemental security income program under subchapter XVI of this chapter, and by the Secretary with respect to other subchapters of this chapter, taking into consideration the programs (or types of benefit) to which the project (or part of a project) is most closely related or which the project (or part of a project) is intended to benefit. If, in order to carry out a project under this subsection, the Commissioner requests a State to make supplementary payments (or the Commissioner makes them pursuant to an agreement under section
1382e of this title) to individuals who are not eligible therefor, or in amounts or under circumstances in which the State does not make such payments, the Commissioner shall reimburse such State for the non-Federal share of such payments from amounts appropriated to carry out subchapter XVI of this chapter. If, in order to carry out a project under this subsection, the Secretary requests a State to provide medical assistance under its plan approved under subchapter XIX of this chapter to individuals who are not eligible therefor, or in amounts or under circumstances in which the State does not provide such medical assistance, the Secretary shall reimburse such State for the non-Federal share of such assistance from amounts appropriated to carry out subchapter XVI of this chapter, which shall be provided by the Commissioner to the Secretary for this purpose.
(2) With respect to the participation of recipients of supplemental security income benefits in experimental, pilot, or demonstration projects under this subsection
(A) the Commissioner is not authorized to carry out any project that would result in a substantial reduction in any individuals total income and resources as a result of his or her participation in the project;
(B) the Commissioner may not require any individual to participate in a project; and the Commissioner shall assure
(i) that the voluntary participation of individuals in any project is obtained through informed written consent which satisfies the requirements for informed consent established by the Commissioner for use in any experimental, pilot, or demonstration project in which human subjects are at risk, and
(ii) that any individuals voluntary agreement to participate in any project may be revoked by such individual at any time;
(C) the Commissioner shall, to the extent feasible and appropriate, include recipients who are under age 18 as well as adult recipients; and
(D) the Commissioner shall include in the projects carried out under this section such experimental, pilot, or demonstration projects as may be necessary to ascertain the feasibility of treating alcoholics and drug addicts to prevent the onset of irreversible medical conditions which may result in permanent disability, including programs in residential care treatment centers.