This document has been declared "Stabilized" and will no longer be subjected to periodic reviews for currency. Users are responsible for verifying references and continued suitability or technical requirements. New technology may exist. This document specifies the CLARA interfaces of the CLAR Truth Data Generator. The objective for the CLAR Truth Data Generator is to produce impact data sets to be used in the CLAR Coefficient Generator first to score and form LAR boundaries, and then to generate coefficients. A model of the weapon system that predicts weapon delivery performance to a predefined accuracy is to be used for this purpose. The model can be the Six-Degree-Of- Freedom (6DOF) equations of motion or another mathematical representation that meets the objective for the weapon system LAR.