CHAPTER 459 - HAZARDOUS MATERIALS

NAC 459.654 “Primary beam” defined. (NRS 459.201) “Primary beam” means ionizing radiation which passes through an aperture of the source housing by a direct path from the X-ray tube or a radioactive source located in the radiation source housing. [Bd. of Health, Radiation Control…

NAC 459.656 Scope. (NRS 459.030, 459.201) The provisions of NAC 459.640 to 459.664, inclusive, establish requirements, binding upon registrants, for use of analytical X-ray equipment. These requirements are in addition to, and not in substitution for, other applicable requirement…

NAC 459.658 Equipment requirements. (NRS 459.201) 1. A safety device which prevents the entry of any portion of a person’s body into the primary X-ray beam path or which causes the beam to be shut off upon entry into its path must be provided on all open-beam configurations. A re…

NAC 459.660 Area requirements. (NRS 459.201) 1. The local components of an analytical X-ray system must be so located and arranged to include sufficient shielding or access control so that no radiation levels exist in any area surrounding the local component group which could res…

NAC 459.662 Operating requirements. (NRS 459.201) 1. Normal operating procedures must be written and made available to all workers on analytical X-ray equipment. No person may operate analytical X-ray equipment in any manner other than that specified in the procedures unless he o…

NAC 459.664 Personnel requirements. (NRS 459.201) 1. No person may operate or maintain analytical X-ray equipment unless he or she has received instruction in and demonstrated competence with regard to: (a) Identification of radiation hazards associated with the use of the equipm…

NAC 459.680 Definitions. (NRS 459.030, 459.201) As used in NAC 459.680 to 459.733, inclusive, unless the context otherwise requires, the words and terms defined in NAC 459.684 to 459.7037, inclusive, have the meanings ascribed to them in those sections. (Supplied in codification;…

NAC 459.684 “Cabinet X-ray system” defined. (NRS 459.030, 459.201) “Cabinet X-ray system” means an X-ray system with the X-ray tube installed in a cabinet that, independent of existing architectural structures except for the floor on which it may be placed, is intended to contain…

NAC 459.6843 “Control panel” defined. (NRS 459.030) “Control panel” has the meaning ascribed to in NAC 459.422. (Added to NAC by Dep’t of Human Resources by R137-01, eff. 5-30-2003)

NAC 459.6847 “Direct reading pocket dosimeter” defined. (NRS 459.030) “Direct reading pocket dosimeter” means an ion-chamber pocket dosimeter or an electronic personal dosimeter. (Added to NAC by Dep’t of Human Resources by R137-01, eff. 5-30-2003)

NAC 459.7015 “Storage area” defined. (NRS 459.030, 459.201) “Storage area” means any location, facility or vehicle used to store or secure an X-ray system when it is not in use. (Added to NAC by Bd. of Health, eff. 1-21-94; A by Dep’t of Human Resources by R137-01, 5-30-2003)

NAC 459.7033 “X-ray industrial radiography” defined. (NRS 459.030) “X-ray industrial radiography” means the examination of the macroscopic structure of materials by nondestructive methods utilizing X-ray sources of radiation. The term includes, without limitation, such an examina…

NAC 459.7037 “X-ray system” defined. (NRS 459.030) “X-ray system” has the meaning ascribed to it in NAC 459.542. (Added to NAC by Dep’t of Human Resources by R137-01, eff. 5-30-2003)

NAC 459.704 Purpose; applicability. (NRS 459.030, 459.201) 1. The provisions of NAC 459.680 to 459.733, inclusive, establish radiation safety requirements for persons engaged in X-ray industrial radiography. These requirements are in addition to and not in substitution for other …

NAC 459.705 X-ray systems: Training requirements for operators. (NRS 459.030) 1. A person who operates an X-ray system for X-ray industrial radiography must: (a) Be trained in the: (1) Normal operating procedures for each X-ray system he or she operates; and (2) Emergency procedu…

NAC 459.707 X-ray systems: Warning devices. (NRS 459.030) An X-ray system used in X-ray industrial radiography must: 1. Have an indication light that indicates when the X-ray system is operating. The light must be clearly visible from any area with access to the X-ray system. 2. …

NAC 459.708 X-ray systems: Locking systems. (NRS 459.030, 459.201) 1. An X-ray system that is located in an unrestricted area must be provided with a lock on the control panel of the system which is designed to prevent unauthorized use of the system or accidental production of ra…

NAC 459.710 X-ray systems: Securing systems. (NRS 459.030, 459.201) An X-ray system must be physically secured to prevent tampering or removal by unauthorized personnel. [Bd. of Health, Radiation Control Reg. § 5.4.3, eff. 2-28-80]—(NAC A by Dep’t of Human Resources by R137-01, 5…

NAC 459.712 Equipment control: Radiation survey instruments. (NRS 459.030, 459.201) 1. The registrant shall maintain sufficient calibrated and operable radiation survey instruments at each location where radiation producing equipment is used. Instrumentation required by this sect…

NAC 459.716 Equipment control: Inspection and maintenance. (NRS 459.030, 459.201) 1. The registrant shall perform visual and operability checks of the indication lights and warning lights of an X-ray system before use each day the X-ray system is used to ensure that the X-ray sys…

NAC 459.719 Precautionary procedures: Posting of signs. (NRS 459.030) A registrant that engages in X-ray industrial radiology shall post with signs, in the manner set forth in subsection 2 of NAC 459.3555, any pathway leading to a high radiation area and any barrier, including a …

NAC 459.7234 Requirements for radiation safety officer. (NRS 459.030, 459.201) 1. A registrant that engages in the practice of X-ray industrial radiography shall appoint a radiation safety officer for the radiographic operation. 2. A radiation safety officer shall: (a) Ensure tha…

NAC 459.724 Safety requirements for operators of X-ray systems. (NRS 459.030, 459.201) 1. Except as otherwise provided in subsection 7, a registrant shall not permit any person to operate an X-ray system to conduct X-ray industrial radiography unless, at all times during radiogra…

NAC 459.733 Safety requirements at temporary job sites, rooms or buildings. (NRS 459.030, 459.201) A licensee or registrant who is responsible for providing X-ray industrial radiography at a temporary job site or in a room or building that does not meet the requirements of NAC 45…

NAC 459.737 Adoption by reference of certain provisions of Code of Federal Regulations; revision of certain terms. (NRS 459.030, 459.201) 1. In addition to any applicable requirement of NAC 459.010 to 459.794, inclusive, a person licensed by the Division to use a sealed source to…

NAC 459.738 Compliance with certain provisions of Code of Federal Regulations regarding program for inspecting and maintaining transport containers. (NRS 459.030) A program for inspecting and maintaining transport containers that complies with the provisions of 10 CFR § 34.31(b),…

NAC 459.740 Purpose; additional requirements. (NRS 459.030, 459.201) 1. The provisions of NAC 459.740 to 459.752, inclusive, establish procedures for the registration and the use of particle accelerators. 2. In addition to the requirements of NAC 459.740 to 459.752, inclusive, al…

NAC 459.742 Requirements for registration; license required under certain circumstances. (NRS 459.201) 1. No person may receive, possess, use, transfer, own or acquire a particle accelerator except as authorized in a registration issued pursuant to NAC 459.010 to 459.950, inclusi…

NAC 459.744 Safety requirements: Generally; operation. (NRS 459.201) 1. NAC 459.740 to 459.752, inclusive, establish radiation safety requirements for the use of particle accelerators. These provisions are in addition to, and not in substitution for, other applicable provisions o…

NAC 459.746 Safety requirements: Expert assistance; shielding; controls; interlock systems; cutoff switch. (NRS 459.201) 1. A qualified expert, specifically accepted by the Division, must be consulted in the design of a particle accelerator installation and called upon to perform…

NAC 459.748 Safety requirements: Warning devices; operating procedures. (NRS 459.201) 1. All locations designated as areas of high radiation and all entrances to those locations must be equipped with easily observable flashing or rotating warning lights that operate when, but onl…

NAC 459.750 Safety requirements: Monitoring. (NRS 459.201) 1. There must be available at each particle accelerator facility appropriate portable monitoring equipment which is operable and calibrated for the appropriate radiations being produced at the facility. This equipment mus…

NAC 459.752 Safety requirements: Ventilation systems. (NRS 459.201) 1. A means must be provided to ensure that personnel entering any area where airborne radioactivity may be produced will not be exposed to airborne radioactive material in excess of the limits specified in Table …

NAC 459.756 Definitions. (NRS 459.201) As used in NAC 459.756 to 459.7745, inclusive, unless the context otherwise requires, the words and terms defined in NAC 459.757 to 459.763, inclusive, have the meanings ascribed to them in those sections. (Added to NAC by Bd. of Health, eff…

NAC 459.757 “Field station” defined. (NRS 459.201) “Field station” means a facility where radioactive material may be stored or used and from which equipment is dispatched to temporary jobsites. (Added to NAC by Bd. of Health, eff. 9-6-88)

NAC 459.7575 “Fresh water aquifer” defined. (NRS 459.201) “Fresh water aquifer” means a geologic formation that is capable of yielding fresh water to a well or spring. (Added to NAC by Bd. of Health, eff. 9-6-88)

NAC 459.758 “Injection tool” defined. (NRS 459.201) “Injection tool” means a device used for controlled subsurface injection of radioactive tracer material. (Added to NAC by Bd. of Health, eff. 9-6-88)

NAC 459.7585 “Irretrievable well logging source” defined. (NRS 459.201) “Irretrievable well logging source” means any sealed source containing radioactive material that is pulled off or not connected to the wireline that suspends the source in the well and for which all reasonabl…

NAC 459.759 “Logging assistant” defined. (NRS 459.201) “Logging assistant” means any person who, under the personal supervision of a logging supervisor, handles sealed sources or tracers that are not in logging tools or shipping containers or who performs surveys required by NAC …

NAC 459.7595 “Logging supervisor” defined. (NRS 459.201) “Logging supervisor” means any person who uses radioactive material or provides personal supervision in the use of radioactive material at a temporary job site and who is responsible to the licensee for assuring compliance …

NAC 459.7598 “Logging tool” defined. (NRS 459.201) “Logging tool” means a device used below the surface to perform well logging. (Added to NAC by Bd. of Health, eff. 9-6-88)

NAC 459.7605 “Personal supervision” defined. (NRS 459.201) “Personal supervision” means guidance and instruction by a logging supervisor who: 1. Is physically present at a temporary job site; 2. Is in personal contact with logging assistants; and 3. Can give immediate assistance.…

NAC 459.761 “Radioactive marker” defined. (NRS 459.201) “Radioactive marker” means material used for depth determination or direction orientation. The term includes radioactive collar markers and radioactive iron nails. (Added to NAC by Bd. of Health, eff. 9-6-88)

NAC 459.7615 “Safety review” defined. (NRS 459.201) “Safety review” means a periodic review provided by the licensee for its employees on radiation safety as it relates to well logging. The review may include, as appropriate: 1. The results of internal inspections; 2. New procedu…

NAC 459.7621 “Source holder” defined. (NRS 459.201) “Source holder” means a housing or assembly into which a sealed source is placed to facilitate the handling and use of the source in well logging. (Added to NAC by Bd. of Health, eff. 9-6-88)

NAC 459.7625 “Subsurface tracer study” defined. (NRS 459.201) “Subsurface tracer study” means the release of unsealed radioactive material or a substance labeled with radioactive material in a single well for the purpose of tracing the movement or position of the material or subs…

NAC 459.763 “Surface casing” defined. (NRS 459.201) “Surface casing” means a pipe or tube used as a lining in a well to isolate fresh water aquifers from the well. (Added to NAC by Bd. of Health, eff. 9-6-88)