From OPRE: This brief provides a general overview of four Responsible Fatherhood (RF) grantees involved in the Parents and Children Together Evaluation (PACT) Evaluation. The brief: 1) provides a general overview of two approaches to service delivery in fatherhood programs; 2) documents how service delivery is linked to fathers’ characteristics; and 3) describes how service delivery approach may be linked to program participation and retention rates. Data gathered via staff interviews, program observations conducted during site visits, ongoing interactions with leadership at each program, and data on service receipt from each programs’ management information system was used to create this brief.