Nothing in this section shall be construed as prohibiting a State that has in effect a law that establishes liability to the State for false or fraudulent claims described in section
3729 of title
31, with respect to programs in addition to the State program under this subchapter, or with respect to expenditures in addition to expenditures described in section
1396b
(a) of this title, from being considered to be in compliance with the requirements of subsection (a) so long as the law meets such requirements.