U.S. regulators and professional associations have promulgated regulations and guidance for the decommissioning of nuclear and radiological facilities. These include,

  •  Process for decommissioning and decontamination
  •  Protocols for performing radiological surveys
  •  Standards for cleanup of residual radiatioactivity for "release for unrestricted use"

U.S. Nuclear Regulatory Commission (NRC)

U. S. Department of Energy (DOE)

U.S. Environmental Protection Agency (EPA)

EPA has developed both guidance and technical documents that assist in setting cleanup levels for radioactively contaminated sites.

California Department of Public Health (DPH)
Radiolologic Health Branch (RHB)

  • DECON-1.  State of California.  "Guidelines for Decontamination of Facilities and Equipment prior to Release for Unrestricted Use." June 1977. (Supplemented by IPM-88-2).   Adopts the surface contamination guidelines of Regulatory Guide 1.86. Rescinded.

  • IPM-88-2.  State of California.  "Policy Momorandum on Clearance Inspection & Survey."  December 1, 1997. (Superseded by RML-00-01 and RML-00-02).  Adopts the surface contamination guidelines of Regulatory Guide 1.86.

  • RML-00-01.  State of California.  "Policy Momorandum on Oversight of Large Scale Decommissioning Projects."  May 1, 2000.

  • RML-00-02.  State of California.  "Policy Memorandum on Radiological Release Criteria for Facilities Undergoing Large Scale Decommissioning."  May 1, 2000.   RML-00-02 adopted the NRC's 10 CFR 20 Subpart E License Termination Rule of 25 mrem/y plus ALARA.  Though California is an NRC Agreement State and is obligated to enforce existing NRC regulations, this policy was challenged in California court and struck down. Rescinded.

Argonne National Laboratory - RESRAD

American Nuclear Society (ANS)

American National Standards Institute - Health Physics Society

Available free to HPS members for individual use only from the members only section of the HPS web site.

  • ANSI/HPS N13.12-1999.  American National Standards Institute.  "Surface and Volumetric Radioactivity Standards for Clearance."  August 31, 1999.  Demonstrates that Regulatory Guide 1.86 surface contamination limits set in 1974 are equal to or less than an equivalent of 1 mrem/y. 

  • ANSI/HPS-N13.12-2013. American National Standards Institute.  "Surface and Volumetric Radioactivity Standards for Clearance."  May 6, 2013. Updated version of ANSI/HPS N13.12-1999.

  • ANSI/HPS-N13.53-2009 (R2016).  "Control and Release of Technologically Enhanced Naturally Occurring Radioactive Material (TENORM)."  August 31, 2009.  Reaffirmed August 24, 2016.

  • ANSI/HPS N13.59-2008 (R2014).  American National Standards Institute.  "Characterization in Support of Decommissioning Using the Data Quality Objectives Process."  July 3, 2008.  Reaffirmed June 11, 2014.

  • ANSI/HPS N13.49-2001 (R2011).  "Performance and Documentation of Radiological Surveys." August 6, 2001. Reaffirmed June 10, 2011. Provides non-regulatory guidance for the performance of radiation surveys.   

Oak Ridge Associated Universities


Interstate and Regulatory Council (ITRC)