NUREG-1736 Consolidated Guidance: 10 CFR Part 20- Standards for Protection Against Radiation Final Report U.S. Nuclear Regulatory Commission .' Office of Nuclear Material Safety and Safeguards Washington, DC 20555-0001 Q AVAILABILITY OF REFERENCE MATERIALS IN NRC PUBLICATIONS NRC Reference Material Non-NRC Reference Material As of November 1999, you may electronically access Documents available from public and special technical NUREG-series publications and other NRC records at libraries include all open literature items, such as NRC's Public Electronic Reading Room at books, journal articles, and transactions, Federal www.nrc.gov/NRC/ADAMS/index.html. Register notices, Federal and State legislation, and Publicly released records include, to name a few, congressional reports. 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NUREG-1736 Consolidated Guidance: 10 CFR Part 20- Standards for Protection Against Radiation Final Report Manuscript Completed: October 2001 Date Published: October 2001 Prepared by R.E. Zelac, J.L. Cameron, H. Karagiannis, J.R. McGrath, S.S. Sherbini, M.L. Thomas, J.E. Wigginton Division of Industrial and Medical Nuclear Safety Office of Nuclear Material Safety and Safeguards U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 ABSTRACT This document, NUREG-1736, "Consolidated Guidance: 10 CFR Part 20 - Standards for Protection Against Radiation," consolidates guidance into a single comprehensive source by reference to numerous guidance documents. It complements the NUREG-1556 series, "Consolidated Guidance about Materials Licenses." Since Part 20 applies to all NRC licensees, in varying degrees, it extends beyond the materials scope of NUREG-1556. Each section in this document provides the following: "* A statement of the requirement (reflecting revisions published in the FederalRegister through October 13, 1999); "* A discussion of the requirement; "* A statement of the requirement's applicability; "* A guidance statement; "* A list of existing regulatory guidance (Regulatory Guides, NUREG reports); "* A list of existing implementation guidance (Information Notices, health physics positions, Part 20 questions and answers, etc.). NUREG-1736, "Consolidated Guidance: 10 CFR Part 20- Standards for Protection Against Radiation," also identifies prior guidance that is now outdated and in some cases subject to withdrawal or revision. iii NUREG-1736 CONTENTS A BSTRA CT ............................................................................... iii FO REW O RD .............................................................................. ix ACKNOW LEDGM ENTS .................................................................... xi ABBREVIATIONS ........................................................................ xiii USING THE INTERNET TO OBTAIN COPIES OF NRC DOCUMENTS AND OTHER INFORM ATION ......................................................................... xvii 1 PURPOSE OF REPORT ................................................................ 1-1 2 AGREEM ENT STATES ................................................................ 2-1 3 PA RT 20 ............................................................................. 3-1 3.20.1001 PU RPO SE .................................................................. 3-1 3.20.1002 SC O PE .................................................................... 3-4 3.20.1003 D EFIN ITIO N S .............................................................. 3-6 3.20.1004 UNITS OF RADIATION DOSE ............................................... 3-24 3.20.1005 UNITS OF RADIOACTIVITY ................................................ 3-27 3.20.1006 INTERPRETATIONS ........................................................ 3-28 3.20.1007 COM M UNICATIONS ....................................................... 3-29 3.20.1008 IM PLEM ENTATION ........................................................ 3-30 3.20.1009 REPORTING, RECORDING, AND APPLICATION REQUIREMENTS: O M B A PPR O V AL .......................................................... 3-32 3.20.1101 RADIATION PROTECTION PROGRAMS ...................................... 3-34 3.20.1201 OCCUPATIONAL DOSE LIMITS FOR ADULTS ................................ 3-38 3.20.1202 COMPLIANCE WITH REQUIREMENTS FOR SUMMATION OF EXTERNAL AND INTERN AL D OSES ......................................................... 3-43 3.20.1203 DETERMINATION OF EXTERNAL DOSE FROM AIRBORNE RADIOACTIVE M A TER IALS .............................................................. 3-46 3.20.1204 (a)(b) DETERMINATION OF INTERNAL EXPOSURE ........................... 3-48 3.20.1204(c) ADJUSTMENTS TO DACs AND ALIs ......................................... 3-51 3.20.1204(d) DOSE FROM CLASS Y MATERIALS .......................................... 3-53 3.20.1204(e)(f)(g) DETERMINATION OF DAC FOR RADIONUCLIDES IN A MIXTURE ......... 3-54 3.20.1204(h) CALCULATION OF COMMITTED EFFECTIVE DOSE EQUIVALENT .............. 3-58 3.20.1206 PLANNED SPECIAL EXPOSURES ............................................ 3-60 3.20.1207 OCCUPATIONAL DOSE LIMITS FOR MINORS ................................ 3-63 3.20.1208 DOSE TO AN EMBRYO/FETUS .............................................. 3-64 3.20.1301 DOSE LIMITS FOR INDIVIDUAL MEMBERS OF THE PUBLIC ................... 3-67 3.20.1302 COMPLIANCE WITH DOSE LIMITS FOR INDIVIDUAL MEMBERS OF THE P U B LIC ................................................................... 3-7 1 3.20.1400 SUBPART E - RADIOLOGICAL CRITERIA FOR LICENSE TERMINATION ......... 3-75 3.20.1401 GENERAL PROVISIONS AND SCOPE ........................................ 3-75 3.20.1402 RADIOLOGICAL CRITERIA FOR UNRESTRICTED USE ......................... 3-77 3.20.1403 CRITERIA FOR LICENSE TERMINATION UNDER RESTRICTED CONDITIONS .... 3-78 3.20.1404 ALTERNATE CRITERIA FOR LICENSE TERMINATION ......................... 3-81 3.20.1405 PUBLIC NOTIFICATION AND PUBLIC PARTICIPATION ........................ 3-83 V NUREG-1736 CONTENTS 3.20.1406 MINIMIZATION OF CONTAMINATION ....................................... 3-84 3.20.1500 SUBPART F - SURVEYS AND MONITORING .................................. 3-86 3.20.1501 (a) G EN ER AL ................................................................ 3-86 3.20.1501 (b) INSTRUMENT CALIBRATION ............................................... 3-90 3.20.1501(c) DOSIM ETRY PROCESSING ................................................. 3-92 3.20.1502(a) CONDITIONS REQUIRING INDIVIDUAL MONITORING OF EXTERNAL OCCUPATIONAL DOSE .................................................... 3-94 3.20.1502(b) CONDITIONS REQUIRING INDIVIDUAL MONITORING OF INTERNAL OCCUPATIONAL DOSE ...................................................