The Deficit Reduction Act of 2005 provided SSA with the authority to conduct pre-effectuation reviews (PER) for favorable initial SSI adult blindness or disability determinations. SSA started conducting these reviews in April 2006. They are conducted before the individual is awarded benefits and are done to ensure the accuracy of the determinations made by state agencies. The Social Security Disability Insurance (DI) program already required PERs, but prior to this legislation only SSI adult disability claims involving concurrent SSI/DI claims were subject to review. SSI PERs support the performance measure to reduce improper payments, improve the accuracy.