Question from University of Osnabrck

To my knowledge one of the important changes of the Personal Responsibility and Work opportunities Act (PRWORA) was that the new Temporary Assistance for Needy Families (TANF) program, which replaced AFDC, enabled the federal states to decide whether to refuse further payments to single parent who bear another child during the time they receive social assistance. Is there a list available which states decided to do so or could you recommend any other source to find out which states make use of this possibility and which do not? Thank you very much.