The foundation of IREPP is the modularized radiological training program for emergency responders. This program, termed the Idaho Modular Emergency Response Radiological Training Program or Idaho MERRT was orginally developed by the U.S. Department of Energy (DOE) as a nationwide modularized radiological training course to ensure training consistency in responding to transportation incidents involving radiological material.

This training program has been adopted and customized by the State of Idaho to provide specific training and guideance to emergency responders.

IMERRT is a flexible program that offers various types and levels of training. It exclusively covers Hazard Class 7 (radioactive material) but builds upon the information and guidance received in other hazardous materials courses.

IMERRT courses range from an overview of radioactive materials to more complex topics of radiological instrumentation and incident response measures providing emergency responders with fundamental knowledge and skills required to respond with confidence to incidents involving radioactive material.