Ohio Administrative Code › Title 3701:1 - Radiation Control › Chapter 3701:1-38 - General Radiation Protection Standards for Sources of Radiation › Section 3701:1-38-01 - Definitions

Current through all regulations passed and filed through July 1, 2024
(A) As used in this
			 chapter and all other rules promulgated pursuant to Chapter 3748. of the
			 Revised Code:
(1) "A1"
			 means the maximum activity of special form radioactive material permitted in a
			 type A package. These values are listed in rule
			 3701:1-50-25
			 of the Administrative Code, or may be derived in accordance with the procedure
			 prescribed in rule
			 3701:1-50-25
			 of the Administrative Code.
(2)
			 "A2" means the maximum activity of radioactive material,
			 other than special form, low specific activity and surface contaminated object
			 material, permitted in a type A package. These values are listed in rule
			 3701:1-50-25
			 of the Administrative Code, or may be derived in accordance with the procedure
			 prescribed in rule
			 3701:1-50-25
			 of the Administrative Code.
(3)
			 "Absorbed dose" means the energy imparted by ionizing radiation per unit mass
			 of irradiated material. The units of absorbed dose are the gray, or Gy, and the
			 rad.
(4) "Accelerator or charged
			 particle accelerator" means any of a class of radiation generating equipment
			 designed to electronically accelerate atomic or sub-atomic particles for
			 subsequent bombardment of targets.
(5) "Accelerator-produced radioactive
			 material" means any material made radioactive by a particle
			 accelerator.
(6) "Activity" means
			 the rate of disintegration or transformation or decay of radioactive material.
			 The units of activity are the becquerel, or Bq, and the curie, or Ci.
(7) "Address of use" means the building or
			 buildings that are identified on the license or registration and where the
			 source of radiation may be received, used, prepared, or stored, except for
			 temporary job sites.
(8)
			 "Administrative controls" means mechanisms used to protect health and minimize
			 damage to life and property through the use of written policies, procedures,
			 instructions, training, observation of work practices, and related compliance
			 audits.
(9) "Administrative
			 monetary penalty" means a monetary penalty assessed by the director under
			 section 3748.05 of the Revised Code and
			 in compliance with rules adopted thereunder, to emphasize the need for lasting
			 remedial action and to deter future violations.
(10) "Adult" means an individual eighteen or
			 more years of age.
(11) "Agreement
			 state" means any state with which the United States nuclear regulatory
			 commission or the atomic energy commission has entered into an effective
			 agreement under subsection 274B of the Atomic Energy Act of 1954, 68 Stat. 919,
			 42 U.S.C.
			 2021, as amended (1978). Non-agreement state
			 means any other state.
(12)
			 "Airborne radioactive material" means radioactive material dispersed in the air
			 in the form of dusts, fumes, particulates, mists, vapors, or gases.
(13) "Airborne radioactivity area" means a
			 room, enclosure, or area in which airborne radioactive materials, composed
			 wholly or partly of licensed material, exist in concentrations:
(a) In excess of the derived air
			 concentrations (DACs) specified in appendix C to rule
			 3701:1-38-12
			 of the Administrative Code, or
(b)
			 To such a degree that an individual present in the area without respiratory
			 protective equipment could exceed, during the hours an individual is present in
			 a week, an intake of 0.6 per cent of the annual limit on intake or twelve
			 DAC-hours.
(14)
			 "Air-purifying respirator" means a respirator with an air-purifying filter,
			 cartridge, or canister that removes specific air contaminants by passing
			 ambient air through the air-purifying element.
(15) "ALARA" or "as low as is reasonably
			 achievable" means every reasonable effort to maintain exposures to radiation as
			 far below the dose limits as is practical consistent with the purpose for which
			 the licensed or registered activity is undertaken, taking into account the
			 state of technology, the economics of improvements in relation to benefits to
			 the public health and safety, and other societal and socioeconomic
			 considerations, and in relation to utilization of nuclear energy and licensed
			 materials and registered activities in the public interest.
(16) "Alert" means events may occur, are in
			 progress, or have occurred that could lead to a release of radioactive material
			 but that the release is not expected to require a response by off-site response
			 organizations to protect persons off-site.
(17) "Annual limit on intake" or "ALI" means
			 the derived limit for the amount of radioactive material taken into the body of
			 an adult worker by inhalation or ingestion in a year. ALI is the smaller value
			 of intake of a given radionuclide in a year by the reference man that would
			 result in a committed effective dose equivalent of 0.05 sievert (five rem) or a
			 committed dose equivalent of 0.5 sievert (fifty rem) to any individual organ or
			 tissue. ALI values for intake by ingestion and by inhalation of selected
			 radionuclides are given in appendix C to rule
			 3701:1-38-12
			 of the Administrative Code.
(18)
			 "Annually" means either
(a) At intervals not
			 to exceed one year; or
(b) Once per
			 year, at about the same time each year, plus or minus one month.
(19) "Area of use" means a portion
			 of an address of use that has been set aside for the purpose of receiving,
			 preparing, using, or storing sources of radiation.
(20) "Assigned protection factor" or "APF"
			 means the expected workplace level of respiratory protection that would be
			 provided by a properly functioning respirator or a class of respirators to
			 properly fitted and trained users. Operationally, the inhaled concentration can
			 be estimated by dividing the ambient airborne concentration by the
			 APF.
(21) "Atmosphere-supplying
			 respirator" means a respirator that supplies the respirator user with breathing
			 air from a source independent of the ambient atmosphere, and includes supplied
			 air respirators, or SARs, and self-contained breathing apparatus, or SCBA,
			 units.
(22) "Atomic energy
			 commission" or "AEC" means the federal agency created by the Atomic Energy Act
			 of 1954, 68 Stat. 919,
			 42 U.S.C.
			 2011, as amended (1964), and was the
			 predecessor agency to the current United States nuclear regulatory
			 commission.
(23) "Background
			 radiation" means radiation from cosmic sources; naturally occurring radioactive
			 materials, including radon, except as a decay product of source or special
			 nuclear material, and global fallout as it exists in the environment from the
			 testing of nuclear explosive devices or from past nuclear accidents such as
			 Chernobyl that contribute to background radiation and are not under the control
			 of the licensee. "Background radiation" does not include radiation from
			 radioactive materials regulated by the department.
(24) "Becquerel" or "Bq" means the SI unit of
			 activity. One becquerel is equal to one disintegration per second.
(25) "Bioassay" or "radiobioassay" means the
			 determination of kinds, quantities or concentrations, and, in some cases, the
			 locations of radioactive material in the human body, whether by direct
			 measurement, in vivo counting, or by analysis and evaluation of materials
			 excreted or removed from the human body.
(26) "Byproduct material" means
(a) Any radioactive material, except special
			 nuclear material, yielded in or made radioactive by exposure to the radiation
			 incident to the process of producing or utilizing special nuclear materials;
			 or
(b) The tailings or wastes
			 produced by the extraction or concentration of uranium or thorium from any ore
			 processed primarily for its source material content, including discrete surface
			 wastes resulting from solution extraction processes. Underground ore bodies
			 depleted by such solution extraction do not constitute byproduct material
			 within the definition.
(27) "Chelating agent" means a chemical
			 compound or mixture that enhances the removal of radioactive material from the
			 body, water or similar applications. Typical chelating agents include amine
			 polycarboxylic acids such as EDTA or DTPA; hydroxy-carboxylic acids; and
			 polycarboxylic acids such as citric acid, carbolic acid, and gluconic
			 acid.
(28) "Chiropractor" means an
			 individual licensed by the state of Ohio to practice chiropractic medicine
			 pursuant to Chapter 4734. of the Revised Code.
(29) "Class" or "lung class" or "inhalation
			 class" means a classification scheme for inhaled material according to its rate
			 of clearance from the pulmonary region of the lung. Materials are classified as
			 D, W, or Y, which applies to a range of clearance half-times: for class D,
			 days, of less than ten days, for class W, weeks, from ten to one hundred days,
			 and for class Y, years, of greater than one hundred days.
(30) "Collective dose" means the sum of the
			 individual doses received in a given period of time by a specified population
			 from exposure to a specified source of radiation.
(31) "Commencement of construction" means
			 taking any action defined as "construction" or any other activity at the site
			 of a facility subject to the rules promulgated pursuant to Chapter 3748. of the
			 Revised Code that has a reasonable nexus to radiological health and
			 safety.
(32) "Committed dose
			 equivalent" or "HT,50" means the dose equivalent to
			 organs or tissues of reference, T, that will be received from an intake of
			 radioactive material by an individual during the fifty year period following
			 the intake.
(33) "Committed
			 effective dose equivalent" or "HE,50" means the sum of
			 the products of the weighting factors applicable to each of the body organs or
			 tissues, WT, that are irradiated and the committed dose
			 equivalent to each of these organs or tissues (HE, 50 =
			 WTHT,50).
(34) "Consortium" means an association of
			 medical use licensees and a PET radionuclide production facility in the same
			 geographical area that jointly own or share in the operation and maintenance
			 cost of the PET radionuclide production facility that produces PET
			 radionuclides for use in producing radioactive drugs within the consortium for
			 noncommercial distributions among its associated members for medical use. The
			 PET radionuclide production facility within the consortium must be located at
			 an educational institution or a medical facility.
(35) "Constraint" or "dose constraint" means
			 a value above which specified licensee actions are required.
(36) "Construction" means the installation of
			 foundations, or in-place assembly, erection, fabrication, or testing for any
			 structure, system, or component of a facility or activity subject to the rules
			 promulgated pursuant to Chapter 3748. of the Revised Code that are related to
			 radiological safety or security. The term "construction" does not include:
(a) Changes for temporary use of the land for
			 public recreational purposes;
(b)
			 Site exploration, including necessary borings to determine foundation
			 conditions or other preconstruction monitoring to establish background
			 information related to the suitability of the site, the environmental impacts
			 of construction or operation, or the protection of environmental
			 values;
(c) Preparation of the site
			 for construction of the facility, including clearing of the site, grading,
			 installation of drainage, erosion and other environmental mitigation measures,
			 and construction of temporary roads and borrow areas;
(d) Erection of fences and other access
			 control measures that are not related to the safe use of, or security of,
			 radiological materials subject to the rules promulgated pursuant to Chapter
			 3748. of the Revised Code;
(e)
			 Excavation;
(f) Erection of support
			 buildings (e.g. construction equipment storage sheds, warehouse and shop
			 facilities, utilities, concrete mixing plants, docking and unloading
			 facilities, and office buildings) for use in connection with the construction
			 of the facility;
(g) Building of
			 service facilities (e.g. paved roads, parking lots, railroad spurs, exterior
			 utility and lighting systems, potable water systems, sanitary sewerage
			 treatment facilities, and transmission lines);
(h) Procurement or fabrication of components
			 or portions of the proposed facility occurring at other than the final,
			 in-place location at the facility; or
(i) Taking any other action that has no
			 reasonable nexus to radiological health and safety.
(37) "Controlled area" means an area, outside
			 of a restricted area but inside the site boundary, access to which can be
			 limited by the licensee or registrant for any reason.
(38) "Critical group" means the group of
			 individuals reasonably expected to receive the greatest exposure to residual
			 radioactivity for any applicable set of circumstances.
(39) "Curie" or "Ci" means a unit of
			 activity. One curie equals 3.7 x 1010
			 disintegrations per second equals 3.7 x 1010
			 becquerels equals 2.22 x 1012 disintegrations per
			 minute.
(40) "Cyclotron" means a
			 particle accelerator in which the charged particles travel in an outward spiral
			 or circular path. A cyclotron accelerates charged particles at energies usually
			 in excess of ten megaelectron volts and is commonly used for production of
			 short half-life radionuclides for medical use.
(41) "Declared pregnant woman" means a woman
			 who has voluntarily informed the licensee or registrant, in writing, of her
			 pregnancy and the estimated date of conception. The declaration remains in
			 effect until the declared pregnant woman withdraws the declaration in writing
			 or is no longer pregnant.
(42)
			 "Decommission" means to safely remove any licensed operation from service and
			 reduce residual radioactivity to a level that permits release of the licensee's
			 property for unrestricted use and termination of the license.
(43) "Dedicated check source" means a
			 radioactive source that is used to assure the consistent performance of a
			 radiation detection or measurement device over several months or
			 years.
(44) "Deep dose equivalent"
			 or "Hd" applies to external whole body exposure, and
			 means the dose equivalent at a tissue depth of one centimeter, one thousand
			 milligram per square centimeter.
(45) "Demand respirator" means an
			 atmosphere-supplying respirator that admits breathing air to the facepiece only
			 when a negative pressure is created inside the facepiece by
			 inhalation.
(46) "Dentist" means an
			 individual licensed by the state of Ohio to practice dentistry under Chapter
			 4715. of the Revised Code.
(47)
			 "Department" means the Ohio department of health.
(48) "Depleted uranium" means uranium
			 containing less uranium-235 than the naturally occurring distribution of
			 uranium isotopes.
(49) "Derived air
			 concentration" or "DAC" means the concentration of a given radionuclide in air
			 which, if breathed by the reference man for a working year of two thousand
			 hours under conditions of light work, results in an intake of one ALI. The
			 condition of light work is inhaling 1.2 cubic meters of air per hour for two
			 thousand hours in a year. DAC values are given in appendix C to rule
			 3701:1-38-12
			 of the Administrative Code.
(50)
			 "Derived air concentration-hour or DAC-hour" means the product of the
			 concentration of radioactive material in air, which is expressed as a fraction
			 or multiple of the derived air concentration for each radionuclide, and the
			 time of exposure to that radionuclide, in hours. A licensee or registrant may
			 take two thousand DAC-hours to represent one ALI, equivalent to a committed
			 effective dose equivalent of 0.05 Sv (five rem).
(51) "Direct reading dosimeter" means a
			 device that measures radiation dose that does not require another device to
			 read the measured radiation dose. Examples of direct reading dosimeters include
			 pocket dosimeters and electronic dosimeters.
(52) "Director" means the director of health
			 or a designee or authorized representative of the director.
(53) "Discipline" means a branch of knowledge
			 or of teaching.
(54) "Discrete
			 source" means a radionuclide that has been processed so that its concentration
			 within a material has been purposely increased for use for commercial, medical,
			 or research activities.
(55)
			 "Disposable respirator" means a respirator for which maintenance is not
			 intended and that is designed to be discarded after excessive breathing
			 resistance, sorbent exhaustion, physical damage, or end-of service-life renders
			 it unsuitable for use. Examples of this type of respirator are a disposable
			 half-mask respirator or a disposable escape-only self-contained breathing
			 apparatus.
(56) "Dose" or
			 "radiation dose" is a generic term that means absorbed dose, dose equivalent,
			 effective dose equivalent, committed effective dose equivalent, or total
			 effective dose equivalent as defined in other paragraphs of this
			 rule.
(57) "Dose equivalent" or
			 "HT" means the product of the absorbed dose in tissue,
			 quality factor, and all other necessary modifying factors at the location of
			 interest. The units of dose equivalent are the sievert and rem.
(58) "Dose limits" or "limits" means the
			 permissible upper bounds of radiation doses established in accordance with
			 these regulations but excludes background radiation and medical
			 exposure.
(59) "Dosimetry
			 processor" means a person that processes and evaluates individual monitoring
			 devices in order to determine the radiation dose delivered to the monitoring
			 devices.
(60) "Effective dose
			 equivalent" or "HE" means the sum of the products of the
			 dose equivalent to each organ or tissue, HT, and the
			 weighting factor, WT, applicable to each of the body
			 organs or tissues that are irradiated: (HE =
			 [SIGMA]WTHT).
(61) "Embryo" or "fetus" means the developing
			 human organism from conception until time of birth.
(62) "Engineering controls" means mechanisms
			 used to protect health and minimize damage to life and property through
			 engineering specifications, design, and construction of the product or facility
			 including all of the security and safety features. This includes, but is not
			 limited to, auxiliary security and safety features such as additional external
			 shielding, barriers, and operational interlocks with associated
			 processes.
(63) "Entrance" or
			 "access point" means any opening through which an individual or extremity of an
			 individual could gain access to radiation areas or to licensed radioactive
			 materials or registered radiation generating equipment. This includes entry or
			 exit portals of sufficient size to permit human entry, irrespective of their
			 intended use.
(64) "Explosive
			 material" means any chemical compound, mixture or device which produces a
			 substantial instantaneous release of gas and heat spontaneously or by contact
			 with sparks or flame.
(65)
			 "Exposure" means being exposed to sources of ionizing radiation.
(66) "External dose" means that portion of
			 the dose equivalent received from radiation sources outside the body.
(67) "Extremity" means hand, elbow, arm below
			 the elbow, foot, knee, or leg below the knee.
(68) "Eye dose equivalent" means the same as
			 lens dose equivalent.
(69)
			 "Facility" means all buildings, equipment, structures and other stationary
			 items that, in addition to the meaning defined in division (H) of section
			 3748.01 of the Revised Code,
			 are:
(a) Located on a single site or on
			 contiguous or adjacent sites and are operated by the same person and have
			 common corporate or business interests; or
(b) Portions of a building or structure which
			 are operated by the same person and have common corporate or business
			 interests.
(70)
			 "Filtering facepiece" or "dust mask" means a negative pressure particulate
			 respirator with a filter as an integral part of the facepiece or with the
			 entire facepiece composed of the filtering medium, not equipped with
			 elastomeric sealing surfaces and adjustable straps.
(71) "Fissile material" means the
			 radionuclides uranium-233, uranium-235, plutonium-239, and plutonium-241, or
			 any combination of these radionuclides. Fissile material means the fissile
			 nuclides themselves, not material containing fissile nuclides. Unirradiated
			 natural uranium and depleted uranium and natural uranium or depleted uranium
			 that has been irradiated in thermal reactors only, are not included in this
			 definition. Certain exclusions from fissile material controls are provided in
			 rule
			 3701:1-50-13
			 of the Administrative Code.
(72)
			 "Fit factor" means quantitative estimate of the fit of a particular respirator
			 to a specific individual, and typically estimates the ratio of the
			 concentration of a substance in ambient air to its concentration inside the
			 respirator when worn.
(73) "Fit
			 test" means the use of a protocol to qualitatively or quantitatively evaluate
			 the fit of a respirator on an individual.
(74) "Generally applicable environmental
			 radiation standards" means standards issued by the United States environmental
			 protection agency under the authority of the Atomic Energy Act of 1954, 68
			 Stat. 919,
			 42 U.S.C.
			 2011, as amended (2005), that impose limits
			 on radiation exposures or levels, or concentrations or quantities of
			 radioactive material, in the general environment outside the boundaries of
			 locations under the control of persons possessing or using radioactive
			 material.
(75) "Gray" or "Gy" means
			 the SI unit of absorbed dose. One gray is equal to an absorbed dose of one
			 joule per kilogram (one hundred rads).
(76)
									"Handle" means
			 receive, possess, use, store, transfer, install, service, or dispose of sources
			 of radiation unless possession is solely for the purpose of
			 transportation.
(77) "Handler" means a
			 facility that handles sources of radiation unless possession is solely for the
			 purpose of transportation.
(78) "Hazardous waste"
			 means those wastes designated as hazardous by rule
			 3745-51-03
			 of the Administrative Code.
(79) "Helmet" means a
			 rigid respiratory inlet covering that also provides head protection against
			 impact and penetration.
(80) "High radiation
			 area" means an area, accessible to individuals, in which radiation levels from
			 radiation sources external to the body could result in an individual receiving
			 a dose equivalent in excess of one millisievert (0.1 rem) in one hour at thirty
			 centimeters from the radiation source or thirty centimeters from any surface
			 that the radiation penetrates.
(81) "Hood" means a
			 respiratory inlet covering that completely covers the head and neck and may
			 also cover portions of the shoulders and torso.
(82) "Individual"
			 means any human being.
(83) "Individual
			 monitoring" means
(a) The assessment of dose
			 equivalent by the use of devices designed to be worn by an
			 individual;
(b) The assessment of
			 committed effective dose equivalent by bioassay or by determination of the
			 time-weighted air concentrations to which an individual has been exposed, i.e.
			 DAC-hours; or
(c) The assessment of
			 dose equivalent by the use of survey data.
(84)
			 "Individual monitoring devices" means devices designed to be worn by a single
			 individual for the assessment of dose equivalent such as film badges;
			 thermoluminescent dosimeters; optically stimulated luminescent dosimeters;
			 pocket ionization chambers; and personal air sampling devices.
(85)
			 "Industrial radiography" means the examination of the structure of materials by
			 nondestructive methods, utilizing sealed sources of radioactive material or
			 radiation-generating equipment.
(86) "Internal dose"
			 means that portion of the dose equivalent received from radioactive material
			 taken into the body.
(87) "Irradiator"
			 means a facility that uses radioactive sealed sources for the irradiation of
			 objects or materials and in which radiation dose rates exceeding five grays
			 (five hundred rads) per hour exist at one meter from the sealed radioactive
			 source in air or water, as applicable for the irradiator type, but does not
			 include irradiators in which both the sealed source and the area subject to
			 irradiation are contained within a device and are not accessible to
			 personnel.
(88) "Lens dose
			 equivalent" or "eye dose equivalent" means the external exposure of the lens of
			 the eye and is taken as the dose equivalent at a tissue depth of 0.3
			 centimeters; i.e. three hundred milligrams per square centimeter.
(89)
			 "License" means a license issued by the nuclear regulatory commission, the
			 director, or another agreement state in accordance with rules adopted by those
			 organizations.
(90) "Licensee" means
			 a person to whom a license is issued.
(91) "Licensed
			 activity" means an activity authorized by a radioactive material license which
			 is essential to achieving the purpose for which the license was issued or
			 amended.
(92) "Licensed
			 material" means radioactive material received, possessed, used, transferred or
			 disposed of under a general or specific license.
(93) "Loose-fitting
			 facepiece" means a respiratory inlet covering that is designed to form a
			 partial seal with the face.
(94) "Lost or missing
			 licensed source of radiation" means a licensed source of radiation whose
			 location is unknown. It includes material that has been shipped but has not
			 reached its destination and whose location cannot be readily traced in the
			 transportation system.
(95) "Low-level
			 radioactive waste" or "LLRW," also "low-level waste," or "LLW" means
			 radioactive waste which is not high-level radioactive waste, spent nuclear
			 fuel, NARM, or byproduct material as defined in section 11 E. (2) of the Atomic
			 Energy Act of 1954 68 Stat. 919,
			 42 U.S.C.
			 2011, as amended (2005), but is radioactive
			 material that the United States nuclear regulatory commission classifies as
			 low-level radioactive waste.
(96) "Low specific
			 activity material" or "LSA" means radioactive material with limited specific
			 activity which is nonfissile or is excepted under rule
			 3701:1-50-13
			 of the Administrative Code, and which satisfies the descriptions and limits set
			 forth below. Shielding materials surrounding the LSA material may not be
			 considered in determining the estimated average specific activity of the
			 package contents. LSA must be in one of three groups:
(a) LSA - I.
(i) Uranium and thorium ores, concentrates of
			 uranium and thorium ores, and other ores containing naturally occurring
			 radioactive radionuclides that are intended to be processed for the use of
			 these radionuclides;
(ii) Natural
			 uranium, depleted uranium, natural thorium or their compounds or mixtures,
			 provided they are unirradiated and in solid or liquid form;
(iii) Radioactive material other than fissile
			 material, for which the A2 value is unlimited;
			 or
(iv) Other radioactive material
			 in which the activity is distributed throughout and the estimated average
			 specific activity does not exceed thirty times the value for exempt material
			 activity concentration determined in accordance with rule
			 3701:1-50-25
			 of the Administrative Code.
(b) LSA-II.
(i) Water with tritium concentration up to
			 0.8 terabecquerels per liter (twenty curies per liter); or
(ii) Other material in which the activity is
			 distributed throughout and the estimated average specific activity does not
			 exceed ( 10-4 A2) per gram
			 for solids and gases, and (10-5
			 A2) per gram for liquids.
(c) LSA-III. Solids (e.g., consolidated
			 wastes, activated materials), excluding powders, that satisfy the requirements
			 of
			 10 C.F.R.
			 71.77 (as in effect on the effective date of this rule), in
			 which:
(i) The radioactive material is
			 distributed throughout a solid or a collection of solid objects, or is
			 essentially uniformly distributed in a solid compact binding agent (such as
			 concrete, bitumen, ceramic, etc.);
(ii) The radioactive material is relatively
			 insoluble, or it is intrinsically contained in a relatively insoluble material,
			 so that even under loss of packaging, the loss of radioactive material per
			 package by leaching, when placed in water for seven days, would not exceed (0.1
			 x A2); and
(iii) The estimated average specific activity
			 of the solid, excluding any shielding material, does not exceed (0.002 x
			 A2) per gram.
(97)
			 "Management" means the chief executive officer or other individual having the
			 authority to manage, direct, or administer the licensee's activities, or those
			 persons' delegate or delegates.
(98) "Medical
			 institution" means an organization in which more than one medical discipline is
			 practiced.
(99) "Medical use"
			 means the intentional internal or external administration of radioactive
			 material or the radiation therefrom to patients or human research subjects
			 under the supervision of an authorized user.
(100) "Member of the
			 public" means any individual except when that individual is receiving an
			 occupational dose.
(101) "Minor" means
			 an individual less than eighteen years of age.
(102) "Monitoring" or
			 "radiation monitoring" or "radiation protection monitoring" means the
			 measurement of radiation levels, concentrations, surface area concentrations or
			 quantities of radioactive material and the use of the results of these
			 measurements to evaluate potential exposures and doses.
(103) "NARM" or
			 "naturally occurring or accelerator-produced radioactive material" means
			 naturally occurring or accelerator-produced radioactive material, including
			 naturally occurring material that is technologically enhanced, and those
			 nuclides that are generated in a charged particle accelerator, but does not
			 include source material, byproduct material, or special nuclear
			 material.
(104) "NARM licensing
			 state" means any state with regulations equivalent to the suggested state
			 regulations for control of radiation relating to, and an effective program for,
			 the regulatory control of NARM and which has been granted final designation by
			 the conference of radiation control program directors, inc.
(105) "Nationally
			 tracked source" means a sealed source containing a quantity equal to or greater
			 than "Category 1" or "Category 2" levels of any radioactive material listed in
			 the appendix to rule
			 3701:1-38-25
			 of the Administrative Code. In this context a sealed source is defined as
			 radioactive material that is sealed in a capsule or closely bonded, in a solid
			 form and which is not exempt from regulatory control. It does not mean material
			 encapsulated solely for disposal, or nuclear material contained in any fuel
			 assembly, subassembly, fuel rod, or fuel pellet. "Category 1" nationally
			 tracked sources are those containing radioactive material at a quantity equal
			 to or greater than the "Category 1" threshold. "Category 2" nationally tracked
			 sources are those containing radioactive material at a quantity equal to or
			 greater than the "Category 2" threshold but less than the "Category 1"
			 threshold.
(106) "Negative
			 pressure respirator" or "tight fitting 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.
(107) "Nonstochastic
			 effect" or "deterministic effect" means health effects, the severity of which
			 varies with the dose and for which a threshold is believed to exist.
			 Radiation-induced cataract formation is an example of a nonstochastic
			 effect.
(108) "NORM" or
			 "naturally occurring radioactive material" means any nuclide that is
			 radioactive in its natural physical state, but does not include source
			 material, byproduct material, or special nuclear material.
(109) "Normal form
			 radioactive material" means radioactive material that has not been demonstrated
			 to qualify as special form radioactive material.
(110) "Nuclear
			 regulatory commission" means the federal agency established by Title II of the
			 Energy Reorganization Act of 1974, 88 Stat. 1233,
			 42 U.S.C.A.
			 5801, as amended (2005), comprising the
			 members of the commission and all offices, employees, and representatives
			 authorized to act in any case or matter related to licensing and related
			 regulatory function previously assigned to the AEC.
(111) "Occupational
			 dose" means the dose received by an individual in the course of employment in
			 which the individual's assigned duties involve exposure to radiation or
			 radioactive material from licensed and unlicensed sources of radiation, whether
			 in the possession of the licensee or other person. Occupational dose does not
			 include doses received from background radiation, from any medical
			 administration the individual has received, from exposures to individuals
			 administered radioactive materials and released in accordance with rule
			 3701:1-58-30
			 of the Administrative Code or equivalent United States nuclear regulatory
			 commission or agreement state regulations, from voluntary participation in
			 medical research programs, or as a member of the public.
(112) "Package" means
			 the packaging together with its radioactive contents as presented for
			 transport.
(a) Fissile material package or
			 type AF package, type BF package, type B(U)F package, or type B(M)F package
			 means a fissile material packaging together with its fissile material
			 contents.
(b) Type A package means
			 a type A packaging together with its radioactive contents. A type A package is
			 defined and must comply with the United States department of transportation
			 regulations in 49 C.F.R. 173 (as
			 in effect on the effective date of this rule).
(c) Type B package means a type B packaging
			 together with its radioactive contents. On approval, a type B package design is
			 designated by the United States nuclear regulatory commission as B(U) unless
			 the package has a maximum normal operating pressure of more than seven hundred
			 kilopascals (one hundred pounds per square inch) gauge or a pressure relief
			 device that would allow the release of radioactive material to the environment
			 under the tests specified in
			 10 C.F.R.
			 71.73 (hypothetical accident conditions)
			 (as in effect on the
			 effective date of this rule), in which case it will receive a designation
			 B(M). B(U) refers to the need for unilateral approval of international
			 shipments; B(M) refers to the need for multilateral approval of international
			 shipments. There is no distinction made in how packages with these designations
			 may be used in domestic transportation. To determine their distinction for
			 international transportation, see United States department of transportation
			 regulations in 49 C.F.R. 173 (as
			 in effect on the effective date of this rule). A type B package approved
			 before September 6, 1983, was designated only as type B. Limitations on its use
			 are specified in
			 10 C.F.R.
			 71.19 (as in effect on the effective date of this
			 rule).
(113) "Packaging"
			 means the assembly of components necessary to ensure compliance with the
			 packaging requirements of rule 49 C.F.R. 173 Subpart I (as in effect on the effective date
			 of this rule). It may consist of one or more receptacles, absorbent
			 materials, spacing structures, thermal insulation, radiation shielding, and
			 devices for cooling or absorbing mechanical shocks. The vehicle, tie-down
			 system and auxiliary equipment may be designated as part of the
			 packaging.
(114) "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 energies usually in
			 excess of one megaelectron volt. For purposes of this definition, "accelerator"
			 is an equivalent term.
(115) "Person" means
			 any individual, corporation, association, business enterprise, or other legal
			 entity either public or private and any legal successor, representative, agent,
			 or agency of that individual, corporation, association, business enterprise, or
			 other legal entity. Person also includes the United States, states, political
			 subdivisions of states, and any department, agency, or instrumentality of the
			 United States or a state, except the U.S. department of energy or the U.S.
			 nuclear regulatory commission where the state regulation of radioactive
			 material by either of those agencies is prohibited by federal law.
(116) "Personnel
			 dosimeter", means a device that measures radiation dose that is processed and
			 evaluated by an accredited "National Voluntary Laboratory Accreditation
			 Program" (NVLAP) processor. Examples of personnel dosimeters include film
			 badges, thermo-luminescent dosimeters (TLD), and optically stimulated
			 luminescence (OSL) dosimeters.
(117) "Pharmacist"
			 means a person who is licensed by the state of Ohio to practice pharmacy
			 pursuant to Chapter 4731. of the Revised Code.
(118) "Physician"
			 means a person who is licensed pursuant to Chapter 4731. of the Revised Code to
			 practice medicine or surgery or osteopathic medicine or surgery.
(119) "Planned
			 special exposure" means an infrequent exposure to radiation, separate from and
			 in addition to the annual dose limits.
(120) "Podiatrist"
			 means an individual licensed by the state of Ohio to practice podiatry pursuant
			 to Chapter 4731. of the Revised Code.
(121) "Positive
			 pressure respirator" means a respirator in which the pressure inside the
			 respiratory inlet covering exceeds the ambient air pressure outside the
			 respirator.
(122) "Positron
			 Emission Tomography (PET) radionuclide production facility" means a facility
			 operating a cyclotron or accelerator for the purpose of producing PET
			 radionuclides.
(123) "Powered
			 air-purifying respirator" or "PAPR" means an air-purifying respirator that uses
			 a blower to force the ambient air through air purifying elements to the inlet
			 covering.
(124) "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.
(125) "Public dose"
			 means the dose received by a member of the public from exposure to radiation
			 and/or radioactive material released by the licensee, or to any other source of
			 radiation under the control of a licensee or registrant. Public dose does not
			 include occupational dose or doses received from background radiation, from any
			 medical administration the individual has received, from exposures to
			 individuals administered radioactive materials and released in accordance with
			 rule
			 3701:1-58-30
			 of the Administrative Code or equivalent United States nuclear regulatory
			 commission or agreement state regulations, or from voluntary participation in
			 medical research programs.
(126) "Pyrophoric
			 material" means any liquid that ignites spontaneously in dry or moist air at or
			 below 54.4 degrees celsius (one hundred thirty degrees fahrenheit). A
			 pyrophoric solid is any solid material, other than one classed as an explosive,
			 which under normal conditions is liable to cause fires through friction,
			 retained heat from manufacturing or processing, or which can be ignited readily
			 and when ignited burns so vigorously and persistently as to create a serious
			 transportation, handling, or disposal hazard. Included are spontaneously
			 combustible and water-reactive materials.
(127) "Qualitative
			 fit test" or "QLFT" means a pass/fail fit test to assess the adequacy of
			 respirator fit that relies on the individual's response to the test
			 agent.
(128) "Quality
			 factor" or "Q" means the modifying factor, as listed in paragraphs (A) and (B)
			 of rule
			 3701:1-38-11
			 of the Administrative Code, that is used to derive dose equivalent from
			 absorbed dose.
(129) "Quantitative
			 fit test" or "QNFT" means an assessment of the adequacy of respirator fit by
			 numerically measuring the amount of leakage into the respirator.
(130) "Quarter" or
			 "quarterly" means a period of time equal to one-fourth of the year observed by
			 the licensee or registrant, approximately thirteen consecutive weeks, providing
			 that the beginning of the first quarter in a year coincides with the starting
			 date of the year and that no day is omitted or duplicated in consecutive
			 quarters.
(131) "Rad" means the
			 special unit of radiation absorbed dose. One rad is equal to an absorbed dose
			 of one hundred ergs per gram, or 0.01 joule per kilogram, or 0.01
			 gray.
(132) "Radiation" or
			 "ionizing radiation" means alpha particles, beta particles, gamma rays, x-rays,
			 neutrons, high speed electrons, high speed protons, and other particles capable
			 of producing ions. Radiation does not include nonionizing radiation, such as
			 radio or microwaves, or visible, infrared or ultraviolet light.
(133) "Radiation
			 area" means an area, accessible to individuals, in which radiation levels could
			 result in an individual receiving a dose equivalent in excess of 0.05
			 millisievert (0.005 rem) in one hour at thirty centimeters from the source of
			 radiation or from any surface that the radiation penetrates.
(134)
			 "Radiation-generating equipment" or "RGE" means any manufactured product or
			 device, or component of such a product or device, or any machine or system that
			 during operation can generate or emit radiation, except those that emit
			 radiation only from radioactive material. "Radiation-generating equipment" does
			 not include either of the following:
(a)
			 Diathermy machines;
(b) Microwave
			 ovens, including food service microwave ovens used for commercial and
			 industrial uses, television receivers, electric lamps, and other household
			 appliances and products that generate very low levels of radiation.
(135) "Radiation
			 Safety Officer" or "RSO" means an individual designated by the licensee who has
			 the knowledge and responsibility for the overall radiation safety program at
			 the facility, to include the implementation of the daily radiation safety
			 operations and compliance with the rules.
(136) "Radioactive
			 material" means any solid, liquid or gaseous material that emits ionizing
			 radiation spontaneously. "Radioactive material" includes accelerator-produced
			 and naturally occurring radioactive materials and byproduct, source, and
			 special nuclear material.
(137) "Radioactive
			 waste" means waste containing regulated radioactive material.
(138) "Radioactivity"
			 means the transformation of unstable atoms by the emission of
			 radiation.
(139) "Radiography"
			 means the same as industrial radiography.
(140) "Reference man"
			 means a hypothetical aggregation of human physical and physiological
			 characteristics arrived at by international consensus. These characteristics
			 may be used by researchers and public health workers to standardize results of
			 experiments and to relate biological insult to a common base.
(141) "Registrant"
			 means a person required by Chapter 3748. of the Revised Code to register
			 radiation-generating equipment with the director.
(142) "Rem" means the
			 special unit of any of the quantities expressed as dose equivalent. The dose
			 equivalent in rem is equal to the absorbed dose in rads multiplied by the
			 quality factor (one rem = 0.01 Sv).
(143) "Research and
			 development" means
(a) Theoretical analysis,
			 exploration, or experimentation; or
(b) The extension of investigative findings
			 and theories of a scientific or technical nature into practical application for
			 experimental and demonstration purposes, including the experimental production
			 and testing of models, devices, equipment, materials and processes. "Research
			 and development" does not include the internal or external administration of
			 sources of radiation to human beings.
(144) "Residual
			 radioactivity" means radioactivity in structures, materials, soils,
			 groundwater, and other media at a site resulting from activities under the
			 licensee's control. This includes radioactivity from all licensed and
			 unlicensed sources used by the licensee, but excludes background radiation. It
			 also includes radioactive materials remaining at the site as a result of
			 routine or accidental releases of radioactive material at the site and previous
			 burials at the site, even if those burials were made in accordance with the
			 provisions of 10 C.F.R. 20 (as
			 in effect on the effective date of this rule).
(145) "Respiratory
			 protective equipment or device" means an apparatus, such as a respirator, used
			 to reduce the individual's intake of airborne radioactive materials.
(146) "Restricted
			 area" means an area access to which is limited by the licensee or registrant
			 for the purpose of protecting individuals against undue risks from exposure to
			 sources of radiation. Restricted area does not include areas used as
			 residential quarters, but separate rooms in a residential building may be set
			 apart as a restricted area.
(147) "Roentgen"
			 means the amount of gamma or x-rays required to produce ions resulting in a
			 charge of 0.000258 coulombs per kilogram of air under standard
			 conditions.
(148) "Sanitary
			 sewerage" means a system of public sewers for carrying off wastewater and
			 refuse, but excluding sewage treatment facilities, septic tanks, and leach
			 fields owned or operated by the licensee.
(149) "Sealed source"
			 means radioactive material that is encased in a manner designed to prevent
			 leakage or escape of the radioactive material.
(150) "Sealed source
			 and device registry" means the national registry that contains all the
			 registration certificates, generated by both the United States nuclear
			 regulatory commission and the agreement states, that summarize the radiation
			 safety information for the sealed sources and devices and describe the
			 licensing and use conditions approved for the product.
(151) "Seismic area"
			 means any area where the probability of a horizontal acceleration in rock of
			 more than 0.3 times the acceleration of gravity in two hundred fifty years is
			 greater than ten per cent, as designated by the United States geological
			 survey.
(152) "Self-contained
			 breathing apparatus" or "SCBA" means an atmosphere-supplying respirator for
			 which the breathing air source is designed to be carried by the user.
(153) "Shallow dose
			 equivalent" or "HS" means the external exposure of the
			 skin of the whole body or the skin of an extremity, is taken as the dose
			 equivalent at a tissue depth of 0.007 centimeter, or seven milligrams per
			 square centimeter.
(154) "Sievert" or
			 "Sv" means the SI unit of any of the quantities expressed as dose equivalent.
			 The dose equivalent in sieverts is equal to the absorbed dose in grays
			 multiplied by the quality factor. One sievert equals one hundred rem.
(155) "Site area
			 emergency" means events may occur, are in progress, or have occurred that could
			 lead to a significant release of radioactive material and that could require a
			 response by off-site response organizations to protect persons
			 off-site.
(156) "Site boundary"
			 means that line beyond which the land or property is not owned, leased, or
			 otherwise controlled by the licensee or registrant.
(157) "Site closure
			 and stabilization" means those actions that are taken upon completion of
			 operations that prepare a disposal site for custodial care and that assure that
			 the disposal site will remain stable and will not need ongoing active
			 maintenance.
(158) "Source
			 material" means uranium, thorium, or any combination thereof in any physical or
			 chemical form, or any ores that contain by weight at least one-twentieth of one
			 per cent (0.05 per cent) of uranium, thorium, or any combination thereof.
			 Source material does not include special nuclear material.
(159) "Sources of
			 radiation" means radioactive material or radiation generating
			 equipment.
(160) "Special form
			 radioactive material" means radioactive material that satisfies the following
			 conditions:
(a) It is either a single solid
			 piece or is contained in a sealed capsule that can be opened only by destroying
			 the capsule;
(b) The piece or
			 capsule has at least one dimension not less than five millimeters (0.2 inch);
			 and
(c) It satisfies the test
			 requirements specified by the United States nuclear regulatory commission in
			 10 C.F.R.
			 71.75 (, as in effect on the
			 effective date of this rule). A special form encapsulation designed in
			 accordance with the United States nuclear regulatory commission requirements
			 identified in
			 10
			 C.F.R. 71.4, in effect on June 30, 1983, and
			 constructed prior to July 1, 1985; a special form encapsulation designed in
			 accordance with the requirements of
			 10
			 C.F.R. 71.4 in effect on March 31, 1996, and
			 constructed before April 1, 1998; and special form material that was
			 successfully tested before September 10, 2015 in accordance with the
			 requirements of
			 10 C.F.R.
			 71.75(d) of this section in
			 effect before September 10, 2015 may continue to be used. Any other special
			 form encapsulation must meet the specifications of this definition.
(161) "Special
			 nuclear material" means either of the following:
(a) Plutonium, uranium-233, uranium enriched
			 in the isotope 233, or in the isotope 235, and any other material that the
			 United States nuclear regulatory commission determines to be special nuclear
			 material, but does not include source material pursuant to section 51 of the
			 Atomic Energy Act of 1954, 68 Stat 919, 42 USCA 2071, as amended
			 (2005).
(b) Any material
			 artificially enriched by any of the foregoing but does not include source
			 material.
(162) "Special
			 nuclear material in quantities not sufficient to form a critical mass" means
			 uranium enriched in the isotope uranium-235 in quantities not exceeding three
			 hundred fifty grams of contained uranium-235; uranium-233 in quantities not
			 exceeding two hundred grams; plutonium in quantities not exceeding two hundred
			 grams; or any combination of them in accordance with the following formula: for
			 each kind of special nuclear material, determine the ratio between the quantity
			 of that special nuclear material and the quantity specified in this paragraph
			 for the same kind of special nuclear material. The sum of such ratios for all
			 of the kinds of special nuclear material in combination shall not exceed
			 unity.
(163) "Stochastic
			 effect" means health effects that occur randomly and for which the probability
			 of the effect occurring, rather than its severity, is assumed to be a linear
			 function of dose without threshold. Hereditary effects and cancer incidence are
			 examples of stochastic effects.
(164) "Supplied-air
			 respirator" or "SAR" or "airline respirator" means an atmosphere-supplying
			 respirator for which the source of breathing air is not designed to be carried
			 by the user.
(165) "Surface
			 contaminated object" or "SCO" means a solid object that is not itself classed
			 as radioactive material, but which has radioactive material distributed on any
			 of its surfaces. SCO must be in one of two groups with surface activity not
			 exceeding the following limits:
(a) SCO-I: a
			 solid object on which:
(i) The non-fixed
			 contamination on the accessible surface averaged over three hundred square
			 centimeters, or the area of the surface if less than three hundred square
			 centimeters, does not exceed four becquerels per square centimeter
			 (10-4 microcurie per square centimeter) for beta and
			 gamma and low toxicity alpha emitters, or 0.4 becquerels per square centimeter
			 10-5 microcurie per square centimeter) for all other
			 alpha emitters;
(ii) The fixed
			 contamination on the accessible surface averaged over three hundred square
			 centimeters, or the area of the surface if less than three hundred square
			 centimeters, does not exceed forty thousand becquerels per square centimeter
			 (one microcurie per square centimeter) for beta and gamma and low toxicity
			 alpha emitters, or four thousand becquerels per square centimeter (0.1
			 microcurie per square centimeter) for all other alpha emitters; and
(iii) The non-fixed contamination plus the
			 fixed contamination on the inaccessible surface averaged over three hundred
			 square centimeters, or the area of the surface if less than three hundred
			 square centimeters, does not exceed forty thousand becquerels per square
			 centimeter (one microcurie per square centimeter) for beta and gamma and low
			 toxicity alpha emitters, or four thousand becquerels per square centimeter (0.1
			 microcurie per square centimeter) for all other alpha emitters.
(b) SCO-II: a solid object on
			 which the limits for SCO-I are exceeded and on which:
(i) The non-fixed contamination on the
			 accessible surface averaged over three hundred square centimeters, or the area
			 of the surface if less than three hundred square centimeter, does not exceed
			 four hundred becquerels per square centimeter (10-2
			 microcurie per square centimeter) for beta and gamma and low toxicity alpha
			 emitters, or forty becquerels per square centimeter
			 (10-3 microcurie per square centimeter) for all
			 other alpha emitters;
(ii) The
			 fixed contamination on the accessible surface averaged over three hundred
			 square centimeters, or the area of the surface if less than three hundred
			 square centimeters, does not exceed eight hundred thousand becquerels per
			 square centimeter (twenty microcuries per square centimeter) for beta and gamma
			 and low toxicity alpha emitters, or eighty thousand becquerels per square
			 centimeter (two microcuries per square centimeter) for all other alpha
			 emitters; and
(iii) The non-fixed
			 contamination plus the fixed contamination on the inaccessible surface averaged
			 over three hundred square centimeters, or the area of the surface if less than
			 three hundred square centimeters, does not exceed eight hundred thousand
			 becquerels per square centimeter (twenty microcuries per square centimeter) for
			 beta and gamma and low toxicity alpha emitters, or eighty thousand becquerels
			 per square centimeter (two microcuries per square centimeter) for all other
			 alpha emitters.
(166) "Survey" means
			 an evaluation of the radiological conditions and potential hazards incident to
			 the production, use, transfer, release, disposal or presence of radioactive
			 material or other sources of radiation. When appropriate, such an evaluation
			 includes a physical survey of the location of radioactive material, or the
			 sources of radiation and measurements or calculations of levels of radiation,
			 or concentrations or quantities of radioactive material present.
(167) "Tight-fitting
			 facepiece" means a respiratory inlet covering that forms a complete seal with
			 the face.
(168) "Total
			 effective dose equivalent" or "TEDE" means the sum of the effective dose
			 equivalent (for external exposures) and the committed effective dose equivalent
			 (for internal exposures).
(169) "Transport
			 index" means the dimensionless number, rounded up to the next tenth, placed on
			 the label of a package, to designate the degree of control to be exercised by
			 the carrier during transportation. The transport index is the number determined
			 by multiplying the maximum radiation level in millisievert per hour at one
			 meter (3.3 feet) from the external surface of the package by one hundred, which
			 is equivalent to the maximum radiation level in millirem per hour at one meter
			 (3.3 feet).
(170) "Type A
			 quantity" means a quantity of radioactive material, the aggregate radioactivity
			 of which does not exceed A1 for special form radioactive
			 material, or A2 for normal form radioactive material,
			 where A1 and A2 are given in rule
			 3701:1-50-25
			 of the Administrative Code.
(171) "Type B
			 quantity" means a quantity of radioactive material greater than a type A
			 quantity.
(172) "Type B
			 package" is defined under "Package."
(173) "United States
			 department of energy" means the department of energy established by the
			 Department of Energy Organization Act, PL 95-91, 91 Stat. 565 (1977),
			 42
			 U.S.C. 7101 et seq., as amended (2006), to
			 the extent that the department of energy or its duly authorized
			 representatives, exercises functions formerly vested in the United States
			 atomic energy commission, its chairman, members, officers and components and
			 transferred to the United States energy research and development administration
			 and to the administrator thereof pursuant to Sections 104(b) to (d) of the
			 Energy Reorganization Act of 1974, PL 93-438, 88 Stat. 1233 at 1237 (1974),
			 42 U.S.C.
			 5814 and retransferred to the secretary of
			 energy pursuant to Section 301(a) of the Department of Energy Organization Act,
			 PL 95-91, 91 Stat. 565 at 577-578 (1977),
			 42 U.S.C.
			 7151.
(174) "Unrestricted
			 area" or "uncontrolled area" means any area, access to which is neither
			 restricted nor controlled by the licensee or registrant.
(175) "User seal
			 check" or "fit check" means an action conducted by the respirator user to
			 determine if the respirator is properly seated to the face. Examples include
			 negative pressure check, positive pressure check, irritant smoke check, or
			 isoamyl acetate check.
(176) "Very high
			 radiation area" means an area, accessible to individuals, in which radiation
			 levels from radiation sources external to the body could result in an
			 individual receiving an absorbed dose in excess of five gray (five hundred rad)
			 in one hour at one meter from a source of radiation or from any surface that
			 the radiation penetrates. At very high doses received at high dose rates, units
			 of absorbed dose, gray and rad, are appropriate, rather than units of dose
			 equivalent, sievert and rem.
(177) "Veterinarian"
			 means an individual licensed by the state of Ohio to practice veterinary
			 medicine pursuant to Chapter 4741. of the Revised Code.
(178) "Waste" means
			 those low-level radioactive wastes containing source, special nuclear, or
			 byproduct material that are acceptable for disposal in a land disposal
			 facility. For the purposes of this definition, low-level radioactive waste
			 means radioactive waste not classified as high-level radioactive waste,
			 transuranic waste, spent nuclear fuel, or byproduct material as defined in
			 paragraph (A)(26)(b) of this rule, or byproduct material as defined in section
			 11 E. (3) and (4) of the Atomic Energy Act of 1954, 68 Stat. 919,
			 42
			 USC 2014, as amended (2005).
(179) "Week" means
			 seven consecutive days starting on Sunday.
(180) "Weighting
			 factor - WT" for an organ or tissue, (T), is the
			 proportion of the risk of stochastic effects resulting from irradiation of that
			 organ or tissue to the total risk of stochastic effects when the whole body is
			 irradiated uniformly. For calculating the effective dose equivalent, the values
			 of WT are:
Organ dose weighting factors
Organ or tissue
WT
Gonads
0.25
Breast
0.15
Red bone marrow
0.12
Lung
0.12
Thyroid
0.03
Bone surfaces
0.03
Remainder
0.30a
Whole body
1.00b
\a\0.30 results from 0.06 for each
				of five "remainder" organs, excluding the skin and the lens of the eye, that
				receive the highest doses.
\b\ for the purpose of weighting the
				external whole body dose (for adding it to the internal dose) a single
				weighting factor, WT = 1.0, has been specified. The use
				of other weighting factors for external exposure will be approved on a
				case-by-case basis until such time as specific guidance is issued.
(181) "Whole body"
			 means for purposes of external exposure, head; trunk, including male gonads;
			 arms above the elbow; legs above the knee.
(182) "Worker" means
			 an individual engaged in activities licensed or registered by the department
			 and controlled by a licensee or registrant, but does not include the licensee
			 or registrant.
(183) "Working level"
			 or "WL" means any combination of short-lived radon decay products (for
			 radon-222: polonium-218, lead-214, bismuth-214, and polonium-214; and for
			 radon-220: polonium-216, lead-212, bismuth-212, and polonium-212) in one liter
			 of air that will result in the ultimate emission of 1.3 x
			 105 million electron volts alpha particle
			 energy.
(184) "Working level
			 month" or "WLM" means a cumulative exposure to one working level for one
			 hundred seventy hours. (Two thousand working hours per year/twelve months per
			 year equals approximately one hundred seventy hours per month.)
(185) "Year" means
			 the period of time beginning in January used to determine compliance with the
			 provisions of this rule. The licensee or registrant may change the starting
			 date of the year used to determine compliance by the licensee or registrant
			 provided that the change is made at the beginning of the year and that no day
			 is omitted or duplicated in consecutive years.