Nevada Administrative Code

NAC 459.052 “Natural radioactivity” defined. (NRS 459.201) “Natural radioactivity” means radioactivity of naturally occurring nuclides. [Bd. of Health, Radiation Control Reg. § 1.2.18, eff. 2-28-80]

NAC 459.0525 “Naturally occurring or accelerator-produced radioactive material” defined. (NRS 459.030) “Naturally occurring or accelerator-produced radioactive material” includes naturally occurring radioactive material, including materials generated by accelerators used in subat…

NAC 459.0527 “Negative pressure respirator” defined. (NRS 459.201) “Negative pressure respirator” means a respirator in which the air pressure inside the facepiece is negative during inhalation with respect to the ambient air pressure outside the respirator. (Added to NAC by Bd. …

NAC 459.053 “Nonstochastic effect” defined. (NRS 459.201) “Nonstochastic effect” means the effects on health from exposure to radiation, the severity of which varies with the dose of radiation and for which it is believed that a threshold exists. (Added to NAC by Bd. of Health, e…

NAC 459.054 “Occupational dose” defined. (NRS 459.030, 459.201) “Occupational dose” means the dose received by a natural person in the course of employment in which the natural person’s duties involve exposure to radiation or radioactive material from licensed and unlicensed sour…

NAC 459.055 “Occupational exposure” defined. (NRS 459.201) “Occupational exposure” means exposure of a person: 1. In a restricted area; or 2. In the course of employment in which the person’s duties involve exposure from sources of radiation, whether in the possession of the lice…

NAC 459.0555 “Package” defined. (NRS 459.201) “Package” means the assembly of the components necessary to comply with the regulations of the United States Department of Transportation relating to packaging and the radioactive contents of the package, as presented for transport. (…

NAC 459.056 “Particle accelerator” defined. (NRS 459.201) “Particle accelerator” means any machine capable of accelerating electrons, protons, deuterons or other charged particles in a vacuum and of discharging the resultant particulate or other radiation into a medium at energie…

NAC 459.058 “Person” defined. (NRS 459.201) 1. “Person” has the meaning ascribed to it in NRS 0.039 and, except as otherwise provided in subsection 2, includes: (a) Any agency or political subdivision of this State, any other state or the United States, other than the Nuclear Reg…

NAC 459.059 “Personnel monitoring” defined. (NRS 459.201) “Personnel monitoring” means: 1. The assessment of dose equivalent by the use of equipment designed to be worn by a person; 2. The assessment of committed effective dose equivalent by bioassay or derived air concentration-…

NAC 459.060 “Personnel monitoring equipment” defined. (NRS 459.030, 459.201) “Personnel monitoring equipment” means devices designed to be worn by a natural person for the assessment of dose equivalent, including, but not limited to, film badges, thermoluminescence dosimeters, po…

NAC 459.062 “Pharmacist” defined. (NRS 459.201) “Pharmacist” has the meaning ascribed to it in 10 C.F.R. § 35.2, as adopted by reference pursuant to NAC 459.3062. [Bd. of Health, Radiation Control Reg. § 1.2.23, eff. 2-28-80]—(NAC A by R085-06, 11-13-2006)

NAC 459.063 “Physical description” defined. (NRS 459.201) “Physical description” means the items required to be indicated on NRC Form 541 to describe low-level radioactive waste. (Added to NAC by Bd. of Health by R084-98, eff. 1-26-99)

NAC 459.064 “Physician” defined. (NRS 459.201) “Physician” has the meaning ascribed to it in 10 C.F.R. § 35.2, as adopted by reference pursuant to NAC 459.3062. [Bd. of Health, Radiation Control Reg. § 1.2.24, eff. 2-28-80]—(NAC A by R085-06, 11-13-2006)

NAC 459.0645 “Planned special exposure” defined. (NRS 459.201) “Planned special exposure” means an infrequent exposure to radiation pursuant to NAC 459.329, separate from and in addition to the annual limits specified in NAC 459.325. (Added to NAC by Bd. of Health, eff. 1-18-94)

NAC 459.06455 “Portable shielding” defined. (NRS 459.201) “Portable shielding” means shielding which may be moved easily by a mobility device or by hand and placed in a primary or secondary beam to reduce the radiation exposure of a person. (Added to NAC by Bd. of Health by R185-…

NAC 459.0646 “Positive pressure respirator” defined. (NRS 459.201) “Positive pressure respirator” means a respirator in which the pressure inside the respiratory inlet covering exceeds the ambient air pressure outside the respirator. (Added to NAC by Bd. of Health by R085-06, eff…

NAC 459.06485 “Pressure demand respirator” defined. (NRS 459.201) “Pressure demand respirator” means a positive pressure atmosphere-supplying respirator that admits breathing air to the facepiece when the positive pressure is reduced inside the facepiece by inhalation. (Added to …

NAC 459.06495 “Principal activities” defined. (NRS 459.201) “Principal activities” means the activities authorized by a license which are essential to achieving the purpose for which the license was issued or amended. The term does not include: 1. Storage during which no licensed…

NAC 459.065 “Public dose” defined. (NRS 459.030, 459.201) “Public dose” means the dose received by a member of the public from exposure to radiation or radioactive material that is released by a licensee, or from another source of radiation under the control of a licensee or regi…

NAC 459.0653 “Qualitative fit test” defined. (NRS 459.201) “Qualitative fit test” means a fit test that relies on the response of a person to the test agent to assess on a pass or fail basis the adequacy of the fit of a respirator. (Added to NAC by Bd. of Health by R085-06, eff. …

NAC 459.0655 “Quality factor” defined. (NRS 459.201) “Quality factor” means the applicable modifying factor that is specified in NAC 459.3235. (Added to NAC by Bd. of Health, eff. 1-18-94)

NAC 459.0657 “Quantitative fit test” defined. (NRS 459.201) “Quantitative fit test” means a fit test that relies on numerically measuring the amount of leakage into a respirator to assess the adequacy of the fit of the respirator. (Added to NAC by Bd. of Health by R085-06, eff. 1…

NAC 459.066 “Rad” defined. (NRS 459.030, 459.201) “Rad” means the special unit of absorbed dose. One rad equals one hundredth of a joule per kilogram of material; for example, if tissue is the material of interest, 1 rad equals 100 ergs per gram of tissue. One rad is equivalent t…

NAC 459.068 “Radiation” defined. (NRS 459.201) “Radiation” means ionizing radiation, that is, gamma rays and X-rays, alpha and beta particles, high speed electrons, neutrons and other nuclear particles. [Bd. of Health, Radiation Control Reg. § 1.2.26, eff. 2-28-80]

NAC 459.070 “Radiation area” defined. (NRS 459.201) “Radiation area” means any area accessible to any person in which there exists radiation at a level which could result in a person receiving a dose equivalent in excess of 0.005 rem in 1 hour at 30 centimeters from the source of…

NAC 459.072 “Radiation machine” defined. (NRS 459.201) “Radiation machine” means any device capable of producing radiation except one which produces radiation only from radioactive material. [Bd. of Health, Radiation Control Reg. § 1.2.28, eff. 2-28-80]

NAC 459.074 “Radiation safety officer” defined. (NRS 459.201) “Radiation safety officer” means a person who has been appointed pursuant to NAC 459.197 or 459.5924, as applicable, to: 1. Implement and oversee a radiation safety program for the use of radiation specified in an appl…

NAC 459.075 “Radiation symbol” defined. (NRS 459.201) “Radiation symbol” means the radiation symbol specified in NAC 459.355. (Added to NAC by Bd. of Health, eff. 1-18-94)

NAC 459.076 “Radioactive material” defined. (NRS 459.201) “Radioactive material” means any solid, liquid or gaseous material which emits radiation spontaneously. The term includes by-product material. [Bd. of Health, Radiation Control Reg. § 1.2.30, eff. 2-28-80]—(NAC A by R185-0…

NAC 459.078 “Radioactivity” defined. (NRS 459.201) “Radioactivity” means the disintegration of unstable atomic nuclei by the emission of radiation. [Bd. of Health, Radiation Control Reg. § 1.2.31, eff. 2-28-80]

NAC 459.0785 “Record of occupational exposure for a monitoring period” defined. (NRS 459.201) “Record of occupational exposure for a monitoring period” means a form provided by the Division to serve as a record of occupational exposure for a monitoring period, or an equivalent fo…

NAC 459.079 “Reference man” defined. (NRS 459.201) “Reference man” means a hypothetical aggregation of human physical and physiological characteristics established by international standards approved by the Board and used by researchers and public health workers to standardize th…

NAC 459.080 “Registrant” defined. (NRS 459.201) “Registrant” means any person who is registered with the Division and who is legally obligated to register with the Division pursuant to NAC 459.010 to 459.950, inclusive, and chapter 459 of NRS. [Bd. of Health, Radiation Control Re…

NAC 459.082 “Registration” defined. (NRS 459.201) “Registration” means registration with the Division in accordance with the provisions of NAC 459.010 to 459.950, inclusive, and chapter 459 of NRS. [Bd. of Health, Radiation Control Reg. § 1.2.33, eff. 2-28-80]—(NAC A by R084-98, …

NAC 459.084 “Regulations of the Department of Transportation” defined. (NRS 459.201) “Regulations of the Department of Transportation” means the regulations in 49 C.F.R. Parts 171 to 177, inclusive. [Bd. of Health, Radiation Control Reg. § 1.2.34, eff. 2-28-80]—(NAC A 9-6-88)

NAC 459.085 “Released for unrestricted use” defined. (NRS 459.201) “Released for unrestricted use” means: 1. When applied to restricted areas on land or in facilities such as buildings, that all radioactive materials have been removed until the only radiation remaining is backgro…

NAC 459.086 “Rem” defined. (NRS 459.030, 459.201) “Rem” means the special unit of any of the quantities expressed as a dose equivalent that is equal to the absorbed dose in rads multiplied by the quality factor. One rem is equivalent to 10 millisieverts. [Bd. of Health, Radiation…

NAC 459.088 “Research and development” defined. (NRS 459.201) “Research and development” means: 1. Theoretical analysis, exploration or experimentation; or 2. The extension of investigative findings and theories of a scientific or technical nature into practical application for e…

NAC 459.0885 “Residual waste” defined. (NRS 459.030, 459.201) “Residual waste” means low-level radioactive waste resulting from processing or decontamination that, because it cannot be easily separated into distinct batches attributable to individual waste generators, is attribut…

NAC 459.089 “Respiratory protective device” defined. (NRS 459.201) “Respiratory protective device” means an apparatus used to reduce the intake of airborne radioactive material by a person. (Added to NAC by Bd. of Health, eff. 1-18-94)

NAC 459.090 “Restricted area” defined. (NRS 459.201) “Restricted area” means any area to which access is limited by the licensee or registrant for the purpose of protecting persons from undue risks from exposure to radiation and radioactive material. The term does not include an …

NAC 459.092 “Roentgen” defined. (NRS 459.201) “Roentgen” (R) means a special unit of exposure. One roentgen equals 2.58 x 10-4 coulombs per kilogram of air. [Bd. of Health, Radiation Control Reg. § 1.2.38, eff. 2-28-80]

NAC 459.093 “Sanitary sewerage” defined. (NRS 459.201) “Sanitary sewerage” means a system of public sewers for carrying off wastewater and refuse. The term does not include sewage treatment facilities, septic tanks or leach fields owned or operated by a licensee. (Added to NAC by…

NAC 459.094 “Sealed source” defined. (NRS 459.201) “Sealed source” means radioactive material that is permanently bonded or fixed in a capsule or matrix designed to prevent release and dispersal of the radioactive material under the most severe conditions which are likely to be e…

NAC 459.0945 “Self-contained breathing apparatus” defined. (NRS 459.201) “Self-contained breathing apparatus” means an atmosphere-supplying respirator for which the breathing air source is designed to be carried by the user. (Added to NAC by Bd. of Health by R085-06, eff. 11-13-2…

NAC 459.095 “Shallow-dose equivalent” defined. (NRS 459.201) “Shallow-dose equivalent” means the dose equivalent to the skin of the whole body or the skin of an extremity that is measured at a tissue depth of 0.007 centimeter (7 mg/cm2). (Added to NAC by Bd. of Health, eff. 1-18-…