This report presents findings from a behavioural intervention designed to increase the number of incarcerated noncustodial parents in Texas who apply for modifications to reduce the amount of their child support orders. Incarcerated noncustodial parents have a limited ability to pay their child support orders each month, due to their incarceration, which can lead to the accumulation of significant child support debt. The Texas Office of the Attorney General’s (OAG’s) Child Support Division operates a program that contacts incarcerated noncustodial parents via mail, informs them of the option to apply for order modifications, and provides instructions on how to begin the process.