In 2019, the Administration for Children and Family’s (ACF) Office of Planning, Research, and Evaluation (OPRE) contracted with Mathematica and its subcontractor, Public Strategies, to conduct the Strengthening the Implementation of Marriage and Relationship Programs (SIMR) project. SIMR’s goal is to understand implementation challenges faced by healthy marriage and relationship education (HMRE) programs and identify and test potential solutions to those challenges.