Transactions on Machine Design Marko Mehle, Luka Kurnjek 7 1 2019 http://www.dline.info/tmd/fulltext/v7n1/tmdv7n1_3.pdf Particle accelerators have many applications; one of these that is gaining popularity is their use in medicine for cancer therapy. Proton and Carbon Ion therapy machines are used to accelerate a beam of particles and to deliver it very accurately into the tumor area. This kind of treatment is called Proton, Ion or simply Particle Therapy, and it presents several advantages over classic radiotherapy. The accelerator machines involved in particle therapy are fairly modest either in power and complexity; yet the distance between the lab and the hospital is great – especially in paper work. One of the tasks that need to be fulfilled is to demonstrate that the machine is safe and effective, as required by the standards and regulations. The purpose of this article is to present a starting point for understanding what it takes to make a Particle Therapy Machine that is compliant with regulations.