Many research and instructional activities use sources of ionizing radiation as a valuable tool to extend fundamental knowledge. These activities are an important part of the University of California’s contribution to the society it serves, and are critical to its mission.

The excellent safety record of the University of California, Berkeley (UC Berkeley) in its use of radiation producing machines and radioactive materials attests to the success of its radiation safety program.

This manual describes the policies and procedures intended to ensure radiation safety on the Berkeley campus. All personnel working with ionizing radiation are required to understand and follow these policies and procedures, and must exercise proper care to prevent radiation from becoming a hazard to themselves or to others.

The use of radioactive materials and radiation producing machines is governed by the regulations and requirements issued by the California Department of Public Health (CDPH) and U.S. Nuclear Regulatory Commission (NRC). UC Berkeley is also committed to implement the requirements expressed in its Broad-Scope Radioactive Materials License issued by CDPH, this Radiation Safety Manual (RSM), and any other written commitments made to the CDPH. Any changes to this RSM must be approved by the campus Radiation Safety Committee (RSC) before implementation. Radiation users will receive information on changes that affect them.

This manual details how the appropriate state and federal regulations apply at UC Berkeley. It supersedes and replaces all previous documents and procedures on this topic.