When at least four Family Empowerment Centers on Disability have been in operation for two years, the State Department of Education shall contract, pursuant to funding made available in that fiscal year’s Budget Act, with an outside entity to conduct an evaluation of the effectiveness of the services provided by the centers, including, but not limited to, the number of parents who have been trained, the number of cases handled by the centers, an estimate of the number of lawsuits avoided, and the overall effectiveness of the centers.