Your local CSEA will use the Ohio Parent Locator Service (OPLS) to search. If the nonresidential parent is out of state, the CSEA can request another state to search. The CSEA can also request location through the Federal Parent Locator System (FPLS), Financial Institution Data Match (FIDM), National Directory of New Hires (NDNH), and the Federal Case Registry (FCR). All of these matches have as a first step a Social Security Number verification. It is becoming harder for nonpaying parents to hide from their child support obligations and the agencies that enforce them.