The Multi-Agency Radiation Survey and Site Investigation Manual, or MARSSIM, provides detailed guidance for planning, implementing, and evaluating environmental and facility radiological surveys conducted to demonstrate compliance with a dose- or risk-based regulation. It is used by federal agencies and states, site owners, contractors, and the public. MARSSIM was developed collaboratively by the Department of Defense (DOD), the Department of Energy (DOE), the United States Nuclear Regulatory Commission (NRC), and the EPA.
The MARSSIM process uses a performance-based approach that, generally, involves more planning and less re-work than other methods. It is efficient, practical, and easy to use in the field.
For more information about the development of MARSSIM, visit MARSSIM on EPA.gov.