10 X-Ray Safety B. Regulatory Requirements X-ray and Radiation Producing Devices Requirements concerning the installation and use of radiation producing devices (RPDs), as well as operator training, are found in Chapter 136C of the Iowa Code. Iowa law further requires the registration of all RPDs with the Iowa Department of Public Health (IDPH). The IDPH conducts periodic inspections of registered devices in order to ensure that their operation is in compliance with regulatory requirements. All RPDs at Iowa State University (ISU) are licensed and registered with the IDPH as either diagnostic or industrial devices. Performance based audits covering rules and operations are completed annually by Environmental Health and Safety (EH&S). University Policy ISU has established its commitment to the safe use of radiation and RPDs through policies that minimize the hazards of radiation and maintaining radiation exposures As Low As Reasonably Achievable (ALARA). These policies can be viewed on the ISU’s Policy Library web page.