Equipment and devices with software-based control, operation, and automation features, such as gamma knives Computers and systems used to maintain source inventories, audit data, and records necessary for compliance with security requirements and regulations Digital technology used to support incident response communications and coordination, such as digital trunk radio systems NRC AND FDA JURISDICTIONS The NRC has a memorandum of understanding (MOU) with the FDA that outlines the roles, responsibilities, and jurisdiction of each agency with respect to radioactive materials. Both the FDA maintain webpages to provide further discussion of their jurisdictions. In sum, while the NRC or agreement states regulate radioactive materials, the FDA reviews the safety and use of radiopharmaceuticals and machines that produce radiation but do not make or use radioactive material.