From the Document: "The Affordable Care Act (ACA) authorized many new discretionary grant programs and provided each one with an authorization of appropriations-typically through FY2014 or FY2015-to carry them out. The ACA also reauthorized funding for numerous existing programs with expired authorizations of appropriations, most of which were still receiving annual funding. The Congressional Budget Office (CBO) estimated that fully funding the discretionary grant programs authorized (or reauthorized) by the ACA, based on the amounts specified in the authorizations of appropriations, would result in appropriations of almost $100 billion over the period FY2012-FY2021. However, the total amount of discretionary funding provided to date falls well below CBO's estimate for two reasons. First, few of the new grant programs authorized by the ACA have received any discretionary appropriations. Second, programs that were reauthorized by the ACA generally have received discretionary appropriations at levels well below the amounts authorized in the law."
CRS Report for Congress, R41390
Federation of American Scientists: http://www.fas.org/sgp/crs/index.html