An effort to reform a Federal or State welfare system includes all of the provisions, except for the Child Support Enforcement provisions of Title III, of the Personal Responsibility and Work Opportunity Reconciliation Act of 1996 (Personal Responsibility Act), 110 Stat. 2105 (1996), and subsequent legislation enacted by Congress or the States to implement, replace or modify key components of the provisions of the Personal Responsibility Act or by States to replace or modify key components of their General Assistance or similar means-tested programs conducted by States or by counties with State funding or under State mandates.