This standard establishes performance and design criteria, test and calibration requirements, and operating and training instruction requirements for portable radiation detection instruments used for detection and measurement of radioactive substances for the purposes of interdiction and emergency response. The appendices of this standard provide reference information. This standard includes:Design and performance requirements for specific instrument types and applicationsType testing and certification requirements for these instruments;Calibration and test intervalsRequired calibration equipmentRequired documentation, including the instrument instruction manual