Electromagnetic energy (also called photons) travels in waves and spans a broad spectrum from very long radio waves to very short gamma rays. The human eye can detect only a small portion of this spectrum called visible light. The photon onthe longer end of the spetrum are considered nonionizing radiation and they include radio, microwave, infrared and visible light. Although, the electromagnetic waves in this part of the spectrum do not typically liberate electrons they can be hazardous in other ways. The RPP provides training on how these waves can be hazardous and how they can worked with safely.