CHAPTER 459 - HAZARDOUS MATERIALS

NAC 459.3168 “Residual radioactivity” defined. (NRS 459.030) 1. “Residual radioactivity” means the amount of radioactivity detectable in structures, material, soils, groundwater or other media at a site that is attributable to activities under the control of a licensee, including…

NAC 459.317 Applicability. (NRS 459.030, 459.201) 1. Except as otherwise provided in subsection 2, the provisions of NAC 459.027, 459.200 and 459.316 to 459.3184, inclusive, apply to any facility licensed by the Division pursuant to NAC 459.010 to 459.950, inclusive. 2. A facilit…

NAC 459.3172 Explanation of total effective dose equivalent to average member of critical group used. (NRS 459.030) For the purposes of NAC 459.316 to 459.3184, inclusive, the total effective dose equivalent to the average member of the critical group used is the peak annual tota…

NAC 459.3174 Minimization of contamination required for issuance of any license. (NRS 459.030, 459.201) 1. An applicant for any license issued by the Division pursuant to NAC 459.010 to 459.950, inclusive, except an applicant for the renewal of a license, must describe in the app…

NAC 459.3176 Additional cleanup of decommissioned site. (NRS 459.030) The Division will require a licensee to perform additional cleanup to a site that has been decommissioned and the license for which has been terminated pursuant to NAC 459.316 to 459.3184, inclusive, if, based …

NAC 459.3178 Property of decommissioned facility: Eligibility for release for unrestricted use. (NRS 459.030) The property of a decommissioned facility is eligible for release for unrestricted use if the residual radiation, distinguishable from background radiation, including gro…

NAC 459.318 Property of decommissioned facility: Eligibility for release for restricted use. (NRS 459.030, 459.201) 1. The property of a decommissioned facility that is not eligible for release for unrestricted use is eligible for release for restricted use if the licensee: (a) D…

NAC 459.3182 Property of decommissioned facility: Alternate criteria for release for restricted or unrestricted use. (NRS 459.030) 1. The Division may terminate a license and release the property of a decommissioned facility for restricted or unrestricted use using alternate crit…

NAC 459.3184 Notice to public; public comment. (NRS 459.030) 1. The Division will notify the public and seek public comment: (a) Upon receipt of a decommissioning plan; (b) Upon receipt of a proposal for the release of a site pursuant to NAC 459.318 or 459.3182; or (c) If the Com…

NAC 459.320 Purpose; applicability; reasonable effort required. (NRS 459.030, 459.201) 1. The provisions of NAC 459.320 to 459.374, inclusive, establish standards for protection against radiation hazards. It is the purpose of those sections to control the receipt, possession, use…

NAC 459.3205 Adoption by reference of certain provisions of federal regulations. (NRS 459.201) The State Board of Health hereby adopts by reference appendices A, B and C to 10 C.F.R. §§ 20.1001 to 20.2402, inclusive. A copy of the volume containing these appendices may be purchas…

NAC 459.321 Development, implementation and review of program for protection against radiation; establishment of constraint on air emissions to environment of radioactive material. (NRS 459.030, 459.201) 1. Each licensee and registrant shall: (a) Develop, document and carry out a…

NAC 459.323 Weighting factors. (NRS 459.201) 1. For calculating the effective dose equivalent, the values of the weighting factor are as follows: Organ Dose Weighting Factors Organ or Tissue Weighting Factor Gonads..................................................................…

NAC 459.3235 Quality factors for converting absorbed dose to dose equivalent. (NRS 459.201) 1. Except as otherwise provided in subsection 2, the quality factors for converting an absorbed dose to a dose equivalent are as follows: Quality Factors and Absorbed Dose Equivalencies Ty…

NAC 459.325 Limits on occupational doses for adults. (NRS 459.030, 459.201) 1. Except as otherwise provided in subsection 5, a licensee or registrant shall control occupational doses, except for planned special exposures, to ensure that no adult receives annually occupational dos…

NAC 459.3255 Compliance with requirements for summation of external and internal doses. (NRS 459.030, 459.201) 1. If a licensee is required to monitor a person pursuant to subsections 1 and 2 of NAC 459.339, the licensee shall demonstrate compliance with the limits set forth in N…

NAC 459.327 Determination of external dose from airborne radioactive material. (NRS 459.030, 459.201) 1. Licensees shall, when determining the external dose from airborne radioactive material, include the deep-dose equivalent, lens dose equivalent and shallow-dose equivalent caus…

NAC 459.3275 Determination of compliance with limits for occupational doses. (NRS 459.201) 1. For the purposes of assessing the dose used to determine compliance with the limits for occupational doses set forth in NAC 459.325, a licensee shall, if required pursuant to subsection …

NAC 459.329 Requirements for planned special exposures. (NRS 459.201) A licensee or registrant may permit a worker who is an adult to receive a planned special exposure, in addition to and accounted for separately from the doses received under the limits specified in NAC 459.325,…

NAC 459.331 Annual limits for occupational doses for minors. (NRS 459.201) The limits for the annual occupational dose for minors are 10 percent of the limits for the annual occupational dose specified in NAC 459.325 for adult workers. (Added to NAC by Bd. of Health, eff. 1-18-94…

NAC 459.333 Dose equivalents to embryos. (NRS 459.030, 459.201) 1. Except as otherwise provided in subsection 4, a licensee or registrant shall ensure that the dose equivalent to an embryo during the entire pregnancy, resulting from occupational exposure of a woman who has declar…

NAC 459.335 Dose limits for individual members of public; application for authorization to increase annual dose limit; imposition of additional restrictions; standards for nuclear power operations. (NRS 459.030, 459.201) 1. Except as otherwise provided in this section and subsect…

NAC 459.3355 Compliance with dose limits for individual members of public. (NRS 459.201) 1. A licensee or registrant shall make or cause to be made surveys of radiation levels in unrestricted areas and radioactive materials in effluents released to unrestricted areas in order to …

NAC 459.336 Orders requiring bioassay services. (NRS 459.201) Where necessary or desirable in order to aid in determining the extent of a person’s exposure to concentrations of radioactive material, the Division may incorporate license provisions or issue an order requiring a lic…

NAC 459.337 Surveys and monitoring. (NRS 459.030, 459.201) 1. Each licensee and registrant shall make, or cause to be made, surveys of areas, including the subsurface, that: (a) Are necessary for the licensee or registrant to comply with NAC 459.010 to 459.950, inclusive; and (b)…

NAC 459.339 Precautionary procedures: Conditions requiring individual monitoring of external and internal occupational doses. (NRS 459.030, 459.201) Each licensee and registrant shall monitor exposures from sources of radiation at levels sufficient to demonstrate compliance with …

NAC 459.341 Precautionary procedures: Control of access to high radiation areas. (NRS 459.201) 1. Except as otherwise provided in this section, a licensee or registrant shall ensure that each entrance to a high radiation area has one or more of the following features: (a) A contr…

NAC 459.343 Precautionary procedures: Control of access to very high radiation areas. (NRS 459.201) In addition to the requirements specified in NAC 459.341, a licensee or registrant shall institute measures to ensure that a person is not able to gain unauthorized or inadvertent …

NAC 459.345 Precautionary procedures: Control of access to very high radiation area with sealed radioactive sources used to irradiate materials. (NRS 459.201) 1. Except as otherwise provided in this section, each area in which there may exist radiation levels in excess of 500 rad…

NAC 459.347 Precautionary procedures: Use of process or other engineering controls; alternative controls; consideration of other safety factors. (NRS 459.201) 1. A licensee shall use, to the extent practicable, process or other engineering controls, including, without limitation,…

NAC 459.349 Precautionary procedures: Use of respiratory protective devices. (NRS 459.201) 1. If a licensee uses respiratory protective devices to limit intakes as required pursuant to NAC 459.347, the licensee shall comply with the following requirements: (a) Except as otherwise…

NAC 459.352 Precautionary procedures: Radiation machines. (NRS 459.201) All radiation machines must be labeled in a manner which cautions people that radiation is produced when the machine is being operated. [Bd. of Health, Radiation Control Reg. § 4.3.3.7, eff. 2-28-80]

NAC 459.3525 Precautionary procedures: Control of licensed radioactive material and radiation machines in unrestricted areas and not in storage. (NRS 459.201) 1. A licensee shall control and maintain constant surveillance of licensed radioactive material that is in an unrestricte…

NAC 459.353 Precautionary procedures: Security of stored material. (NRS 459.201) A licensee or registrant shall secure from unauthorized removal or access licensed or registered sources of radiation that are stored in controlled areas as specified in the license or registration o…

NAC 459.354 Precautionary procedures: Instruction of personnel. (NRS 459.201) Instructions are required for persons working in or frequenting any portion of a restricted area as specified in NAC 459.784. [Bd. of Health, Radiation Control Reg. § 4.3.5, eff. 2-28-80]

NAC 459.355 Precautionary procedures: Radiation symbol; labels; additional information. (NRS 459.201) 1. Except as otherwise provided in this section or as otherwise authorized by the Division, a licensee or registrant shall use a radiation symbol with a three-bladed design as fo…

NAC 459.3555 Precautionary procedures: Requirements for posting signs. (NRS 459.201) Except as otherwise provided in NAC 459.3565: 1. A licensee or registrant shall post in each radiation area a conspicuous sign or signs bearing the radiation symbol and the words “CAUTION, RADIAT…

NAC 459.3565 Precautionary procedures: Exceptions to requirements for posting signs. (NRS 459.030, 459.201) 1. A licensee or registrant is not required to post signs pursuant to NAC 459.3555 in an area or room containing sources of radiation for periods of less than 8 hours if: (…

NAC 459.357 Precautionary procedures: Requirements for labeling containers and radiation machines. (NRS 459.201) Except as otherwise provided in NAC 459.3575: 1. Each licensee shall ensure that each container of licensed radioactive material bears a durable, clearly visible label…

NAC 459.3575 Precautionary procedures: Exceptions to requirements for labeling containers. (NRS 459.201) A licensee is not required to label a container pursuant to NAC 459.357 if the container is: 1. Holding licensed radioactive material in quantities that are less than the quan…

NAC 459.3585 Precautionary procedures: Receiving, monitoring and opening packages. (NRS 459.201) 1. Each licensee who expects to receive a package containing quantities of radioactive material in excess of a type A quantity, as defined in 10 C.F.R. § 71.4, shall make arrangements…

NAC 459.359 Disposal of waste: General requirements. (NRS 459.201) 1. A licensee shall dispose of licensed radioactive material only: (a) By transfer to an authorized recipient as provided in NAC 459.180 to 459.3154, inclusive, and 459.8231 to 459.950, inclusive; (b) By decay in …

NAC 459.3595 Disposal of waste: Application for approval of proposed procedures. (NRS 459.201) A licensee or applicant for a license may apply to the Division for approval of proposed procedures, not otherwise authorized pursuant to NAC 459.010 to 459.950, inclusive, to dispose o…

NAC 459.3605 Disposal of waste: Release into sanitary sewerage. (NRS 459.201) 1. Except as otherwise provided in subsection 2, a licensee may discharge licensed radioactive material into sanitary sewerage only if each of the following conditions is satisfied: (a) The material is …

NAC 459.361 Disposal of waste: Treatment or disposal by incineration. (NRS 459.201) A licensee may treat or dispose of licensed radioactive material by incineration only in the amounts and forms: 1. Specified in NAC 459.3615; or 2. Approved by the Division pursuant to NAC 459.359…

NAC 459.3615 Disposal of waste: Specific wastes. (NRS 459.201) 1. Except as otherwise provided in subsection 2, a licensee may dispose of the following licensed radioactive material as if it were not radioactive: (a) Not more than 0.05 microcurie of hydrogen-3 or carbon-14 per gr…

NAC 459.362 Quantities of radioactive materials for signs, labels and signals; disposal of waste. (NRS 459.201) The following quantities must be used for the purposes of subsection 1 of NAC 459.1955: Radioactive Material Microcuries Americium-241 0.01 Antimony-122 100 Antimony-12…