Although all minerals and raw materials contain radionuclides of natural origin, only certain work activities involving such materials can give rise to significantly enhanced exposures that may need to be controlled by regulation. Material giving rise to these enhanced exposures is known as naturally occurring radioactive material (NORM) and exposure to such material was the subject of the NORM V symposium held in Seville in March 2007. These proceedings contain all oral presentations and rapporteur reports as well as a summary that concludes with the main findings of the symposium. Text versions of the poster presentations are provided on a CD-ROM.