Latin American CCT programmes pioneered the use of rigorous impact evaluation methodologies to assess social development programmes. These evaluations have been useful for ensuring continued political support for the interventions and for helping policymakers improve CCTs to achieve even greater impact.  This Brief reviews evaluation objectives, key steps to consider in designing and implementing a rigorous CCT evaluation, and describes how evaluations have been used in the region.  The Latin American story of CCT evaluations may be useful for both practitioners and policymakers as they consider how to plan and implement evaluations of their own CCTs.