An official website of the United States government.

We've made some changes to If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Radiation Protection

Am I required to use MARSSIM?

You are not required to use MARSSIM. However, it is a technical best practices document.  Additionally, it has multi-agency consensus; the Department of Defense (DOD), the Department of Energy (DOE), the Nuclear Regulatory Commission (U.S.NRC), and the EPA all endorse the document. Many state regulatory programs have also adopted the use of MARSSIM for demonstrating dose-based, or risk-based, compliance.

For more information about MARSSIM, visit Multi-Agency Radiation Survey and Site Investigation Manual (MARSSIM).

Return to Frequent Questions about Radiation Regulations, Guidance and Compliance.