The federal Office of Child Support Enforcement awarded grants to eight states to design and implement interventions as part of the Behavioral Interventions for Child Support Services (BICS) project. The sites used insights from behavioral economics to improve the operations of child support programs. A concurrent grant funded technical assistance and evaluation services in conjunction with each site. This work included identifying problems of interest, diagnosing behavioral bottlenecks, designing behavioral interventions to address these bottlenecks, and using randomized control trials to evaluate the impact of these interventions. MEF was a subcontractor to MDRC on this project. MEF staff led the cost and implementation study and served as leads for three sites.