; and (2) by amending subsection (b) to read as follows: (b) No adjustment or recovery of any medical assistance correctly paid on behalf of an individual under the State plan may be made. . 206. State standards (a) In general Nothing in this Act shall prohibit individual States from setting additional standards, with respect to eligibility, benefits, and minimum provider standards, consistent with the purposes of this Act, provided that such standards do not restrict eligibility or reduce access to benefits or services. (b) Restrictions on providers With respect to any individuals or entities certified to provide services covered under section 201(a)(7), a State may not prohibit an individual or entity from participating in the program under this Act, for reasons other than the ability of the individual or entity to provide such services. III Provider Participation 301. Provider participation and standards (a) In general An individual or other entity furnishing any covered service under this Act is not a qualified provider unless the individual or entity— (1) is a qualified provider of the services under section 302; (2) has filed with the Secretary a participation agreement described in subsection (b)