Louisiana Administrative Code › Title 33 - ENVIRONMENTAL QUALITY › Part XV - Radiation Protection › Chapter 1 - General Provisions › Section XV-102 - Definitions and Abbreviations

Current through Register Vol. 50, No. 6, June 20, 2024
A. As used
				in these regulations, these terms have the definitions set forth below.
				Additional definitions used only in a certain chapter may be found in that
				Chapter.
A1
- the maximum
				  activity of special form radioactive material permitted in a Type A
				  package.
A2
- the maximum
				  activity of radioactive material, other than special form, LSA, and SCO
				  material, permitted in a Type A package. These values are either listed in, or
				  may be derived in accordance with the procedure prescribed in, Appendix A of  10
				  CFR Part 71.
Absorbed Dose
- the energy imparted by
				  ionizing radiation per unit mass of irradiated material. The units of absorbed
				  dose are the rad and the gray (Gy).
Accelerator-Produced Radioactive
				  Material
-any material made radioactive by a particle
				  accelerator.
Act
-the Louisiana Environmental Quality Act,
				  (R.S. 30:2001
				  etseq).
Activity
- the rate of disintegration or
				  transformation or decay of radioactive material. The units of activity are the
				  becquerel (Bq) and the curie (Ci).
Address of Use
- the building or buildings
				  that are identified on the license and where radioactive material may be
				  received, prepared, used, or stored.
Administrative Authority
-the Secretary of
				  the Department of Environmental Quality or his designee or the appropriate
				  assistant secretary or his designee.
Adult
-an individual 18 or more years of
				  age.
Agreement State
-any state with which the
				  U.S. Nuclear Regulatory Commission or the U.S. Atomic Energy Commission has
				  entered into an effective agreement under subsection 274. b of the Atomic
				  Energy Act of 1954, as amended. Non-agreement State means any other
				  state.
Airborne Radioactive Material
-any
				  radioactive material dispersed in the air in the form of dusts, fumes,
				  particulates, mists, vapors, or gases.
Airborne Radioactivity Area
-a room,
				  enclosure, or area in which airborne radioactive materials exist in
				  concentrations:
1. in excess of the
				derived air concentrations (DACs) specified in LAC 33:XV.499.Appendix B, Table
				I of these regulations; or
2. 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 percent of the annual limit on intake (ALI) or
				12DAC-hours.
Alert
- events that 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.
Area of Use
- a portion of a physical
				  structure that has been set aside for the purpose of receiving, using, or
				  storing radioactive material.
As Low As Is Reasonably Achievable (ALARA)
-
				  making every reasonable effort to maintain exposures to radiation as far below
				  the dose limits in these regulations 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 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
				  or registered sources of radiation in the public interest.
Atomic Energy Act
-Atomic Energy Act of 1954
				  (68 Stat. 919), including any amendments thereto.
Associate Radiation Safety Officer
-an
				  individual who:
a. meets the
				requirements in LAC 33:XV.763.A and M; and
b. is currently identified as an associate
				radiation safety officer for the types of use of byproduct material for which
				the individual has been assigned duties and tasks by the radiation safety
				officer on:
i. a specific medical use license
				issued by the NRC or an agreement state; or
ii. a medical use permit issued by a NRC
				master material licensee.
Authorized Medical Physicist
- an individual
				  who meets the requirements in LAC 33:XV.763.J. 1 and M, or who is identified as
				  an authorized medical physicist or teletherapy physicist on:
1. a specific medical use license issued by
				the department, the U.S. Nuclear Regulatory Commission, or an agreement
				state;
2. a medical use permit
				issued by a U.S. Nuclear Regulatory Commission master material
				licensee;
3. a permit issued by the
				department, the U.S. Nuclear Regulatory Commission, or an agreement state broad
				scope medical use licensee; or
4. a
				permit issued by a U.S. Nuclear Regulatory Commission master material license
				broad scope medical use permittee.
Authorized Nuclear Pharmacist
-a pharmacist
				  who:
1. is board certified as a
				nuclear pharmacist by the Board of Pharmaceutical Specialties; or
2. is identified as an authorized nuclear
				pharmacist on a departmental, licensing state, Nuclear Regulatory Commission,
				or agreement state specific license that authorizes medical use or the practice
				of nuclear pharmacy; or
3. is
				identified as an authorized nuclear pharmacist on a permit issued by the
				department, licensing state, Nuclear Regulatory Commission, or agreement state
				broad scope medical use licensee that authorizes medical use or the practice of
				nuclear pharmacy; or
4. is
				identified as an authorized nuclear pharmacist on a permit issued by a Nuclear
				Regulatory Commission master material licensee that authorizes medical use or
				the practice of nuclear pharmacy; or
5. is identified as an authorized nuclear
				pharmacist on a permit issued by a Nuclear Regulatory Commission master
				material license broad scope medical use permittee that authorizes medical use
				or the practice of nuclear pharmacy; or
6. is identified as an authorized nuclear
				pharmacist by a commercial nuclear pharmacy that has been authorized to
				identify authorized nuclear pharmacists; or
7. is designated as an authorized nuclear
				pharmacist in accordance with LAC 33:XV.328.J.2.d; or
8. meets the requirements specified in LAC
				33:XV.763.K and M.
Authorized User
- a physician, dentist, or
				  podiatrist who is:
1. board certified
				by at least one of the boards listed in LAC 33:XV.763.C.l, D.l, E.l, F.l, H.l,
				or 1.1;
2. identified as an
				authorized user on a department, licensing state, Nuclear Regulatory
				Commission, or agreement state license that authorizes the medical use of
				radioactive material; or
3.
				identified as an authorized user on a permit issued by the department,
				licensing state, Nuclear Regulatory Commission, or agreement state specific
				licensee of broad scope authorized to permit the medical use of radioactive
				material.
Background Radiation
- radiation from cosmic
				  sources; naturally occurring radioactive materials, including radon, except as
				  a decay product of source or special nuclear material, and including 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 source, byproduct, or special nuclear
				  materials regulated by the department.
Becquerel
-the SI unit of measurement of
				  radioactivity; it is equal to one disintegration per second. One curie is equal
				  to 3.7 x 10 becquerels (bq).
Bioassay
- 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. For purposes of these regulations,
radiobioassay
is an
				  equivalent term.
Brachytherapy
-a method of radiation therapy
				  in which sealed sources are utilized to deliver a radiation dose at a distance
				  of up to a few centimeters, by surface, intracavitary, or interstitial
				  application.
Brachytherapy Source
-a radioactive source or
				  a manufacturer-assembled source train or a combination of these sources that is
				  designed to deliver a therapeutic dose within a distance of a few
				  centimeters.
Byproduct Material
-
1. 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
				material;
2. the tailings or wastes
				produced by the extraction or concentration of uranium or thorium
				(R.S. 30:2103) from
				ore processed primarily for its source material content, including discrete
				surface wastes resulting from uranium or thorium solution extraction processes.
				Underground ore bodies depleted by these solution extraction operations do not
				constitute byproduct material within this definition;
3. any discrete source of radium-226 that is
				produced, extracted, or converted after extraction, before, on, or after August
				8, 2005, for use for a commercial, medical, or research activity; or
4. any material that has been made
				radioactive by use of a particle accelerator, and is produced, extracted, or
				converted after extraction, before, on, or after August 8, 2005, for use for a
				commercial, medical, or research activity; and
5. any discrete source of naturally occurring
				radioactive material, other than source material that the U. S. Nuclear
				Regulatory Commission, in consultation with the administrator of the
				Environmental Protection Agency, the secretary of Energy, the secretary of
				Homeland Security, and the head of any other appropriate federal agency,
				determines would pose a threat similar to the threat posed by a discrete source
				of radium-226 to the public health and safety or the common defense and
				security; and before, on, or after August 8, 2005, is extracted or converted
				after extraction for the use in a commercial, medical, or research activity.
Calendar Quarter
- any period consisting of
				  not less than 12 consecutive weeks nor more than 14 consecutive weeks. The
				  first calendar quarter of each year shall begin in January, and subsequent
				  calendar quarters shall be so arranged that no day is included in more than one
				  calendar quarter, and no day in any one year is omitted from inclusion within a
				  calendar quarter. The method observed by the licensee or registrant for
				  determining calendar quarters shall only be changed at the beginning of a
				  year.
Calibration
- the determination of:
1. the response or reading of an instrument
				relative to a series of known radiation values over the range of the
				instrument; or
2. the strength of a
				source of radiation relative to a standard.
CFR- Code of Federal Regulations.
Chelating Agents
- amine polycarboxylie
				  acids, hydroxy-carboxylic acids, gluconic, and polycarboxylic acids.
Chiropractor
- an individual licensed in the
				  practice of chiropractic, as provided in
				  R.S.
				  37:2801 et seq.
Client's Address
- the area of use or a
				  temporary jobsite for the purpose of providing mobile medical service in
				  accordance with LAC 33:XV.726.
Collective Dose
- 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.
Commission
-the U.S. Nuclear Regulatory
				  Commission or its duly authorized representatives.
Committed Dose Equivalent
				  (Ht,50)
- 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 50-year period following the
				  intake.
Committed Effective Dose Equivalent
				  (HE,50)
- the sum of the products of the
				  weighting factors applicable to each of the body organs or tissues that are
				  irradiated and the committed dose equivalent to each of these organs or tissues
				  (HE,50 =
				  [SIGAM]WT,HT,50)-
Consortium
-an association of medical use
				  licensees and a
positron emission tomography (PET) radionuclide
				  production facility
as defined in this Section located in the same
				  geographical area. They shall 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
as defined in this Section. The PET radionuclide production
				  facility within the consortium shall be located at an educational institution,
				  a federal facility, or a medical facility.
Controlled Area
- an area, outside a
				  restricted area but inside the site boundary, to which access can be limited by
				  the licensee for any reason.
Curie
-the amount of radioactive material
				  that disintegrates at the rate of 37 billion atoms per second or 3.7 x
				  1010 disintegrations per second (dps). Commonly used
				  submultiples of the curie are the millicurie and the microcurie. One millicurie
				  (mCi) is equal to 0.001 curie, which is equal to 3.7 x
				  107 dps. One microcurie (µCi) is equal to
				  0.000001 curie, which is equal to 3.7 x 104 dps. One
				  curie is equal to 3.7 x 1010
				  becquerels.
Decommission
- to remove (as a facility)
				  safely from service and reduce residual radioactivity to a level that
				  permits:
1. release of the property
				for unrestricted use and termination of license; or
2. release of the property under restricted
				conditions and termination of the license.
Dedicated Check Source
- a radioactive source
				  that is used to assure the constant operation of a radiation detection or
				  measurement device over several months or years. This source may also be used
				  for other purposes.
Deep Dose Equivalent
				  (Hd)
- the dose equivalent at a tissue depth of
				  1 centimeter (1000 mg/cm), which applies to external whole body
				  exposure.
Dentist
- an individual licensed by a state
				  or territory of the United States, the District of Columbia, or the
				  Commonwealth of Puerto Rico to practice dentistry.
Department
- the Department of Environmental
				  Quality.
Depleted Uranium
- the source material
				  uranium in which the isotope uranium-235 is less than 0.711 weight percent of
				  the total uranium present. Depleted uranium does not include special nuclear
				  material.
Discrete Source
-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.
Distinguishable from Background
- the
				  detectable concentration of a radionuclide that is statistically different from
				  the background concentration of that radionuclide in the vicinity of the site
				  or, in the case of structures, in similar materials using adequate measurement
				  technology, survey, and statistical techniques.
Dose
- a generic term that means absorbed
				  dose, dose equivalent, effective dose equivalent, committed dose equivalent,
				  committed effective dose equivalent, total organ dose equivalent, or total
				  effective dose equivalent. For purposes of these regulations,
radiation
				  dose
is an equivalent term.
Dose Commitment
- the total radiation dose to
				  a part of the body that will result from retention in the body of radioactive
				  material. For purposes of estimating the dose commitment, it is assumed that
				  from the time of intake the period of exposure to retained material will not
				  exceed 50 years.
Dose Equivalent (HT)
-
				  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 sivert (Sv) and rem.
Effective Dose Equivalent
				  (HE)
- 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).
Embryo/Fetus
- the developing human organism
				  from conception until the time of birth.
Emergency
- any condition existing outside of
				  the bounds of nuclear operating sites owned or licensed by a federal agency,
				  and further any condition existing within or outside of the jurisdictional
				  confines of a facility licensed or registered by the department and arising
				  from the presence of byproduct material, source material, special nuclear
				  material, or any other radioactive material or source of radiation that is
				  endangering or could reasonably be expected to endanger the health and safety
				  of the public or to contaminate the environment (R.S.
				  30:2105).
Entrance or Access Points
- any opening
				  through which an individual or extremity of an individual could gain access to
				  radiation areas or to licensed or registered radioactive materials. This
				  includes entry or exit portals of sufficient size to permit human entry,
				  irrespective of their intended use.
Explosive Material
- any chemical compound,
				  mixture, or device that produces a substantial instantaneous release of gas and
				  heat spontaneously or by contact with sparks or flame as referenced in
				  49 CFR
				  173.53 - 173.114(a).
Exposure
- being exposed to ionizing
				  radiation or to radioactive material.
Exposure Rate
- the exposure per unit of
				  time, such as Roentgen per minute (R/min) and milliroentgen per hour
				  (mR/hr).
External Dose
- that portion of the dose
				  equivalent received from any source of radiation outside the body.
Extremity
- hand, elbow, arm below the elbow,
				  foot, knee, and leg below the knee.
Former U.S. Atomic Energy Commission (AEC)
or
U.S. Nuclear Regulatory Commission (NRC) Licensed
				  Facilities
- nuclear reactors, nuclear fuel reprocessing plants,
				  uranium enrichment plants, or critical mass experimental facilities where AEC
				  or NRC licenses have been terminated.
Generally Applicable Environmental Radiation
				  Standards
- standards issued by the U.S. Environmental Protection
				  Agency (EPA) under the authority of the Atomic Energy Act of 1954, as amended,
				  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.
Government Agency
-any executive department,
				  commission, independent establishment, corporation, wholly or partly owned by
				  the United States of America which is an instrumentality of the United States,
				  or any board, bureau, division, service, office, officer, authority,
				  administration, or other establishment in the executive branch of the
				  government.
Gray
- the SI unit of absorbed dose; it is
				  equal to one Joule per kilogram. One rad is equal to 0.01 gray (Gy).
Hazardous Waste
- those wastes designated as
				  hazardous by U.S. Environmental Protection Agency regulations in  40 CFR 261  and
				  by Louisiana Administrative Code regulations inLAC33:V.
Healing Art
- the professional disciplines
				  authorized by the laws of this state to use radiation or radioactive material
				  in the diagnosis or treatment of human or animal disease.
High Dose-Rate Remote Afterloader
- a
				  brachytherapy device that remotely delivers a dose rate in excess of 12 gray
				  (1200 rads) per hour at the point or surface where the dose is
				  prescribed.
High-Level Waste
- unreprocessed spent fuel
				  rods or that waste resulting from the reprocessing of spent fuel rods.
High-Radiation Area
- 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 100
				  millirems (one millisievert) in one hour at 30 centimeters from the radiation
				  source or 30 centimeters from any surface that the radiation penetrates.
Human Use
- the internal or external
				  administration of radiation or radioactive materials to human beings.
Indian Tribe-
an Indian or Alaska Native
				  tribe, band, nation, pueblo, village, or community that the Secretary of the
				  Interior acknowledges to exist as an Indian tribe pursuant to the Federally
				  Recognized Indian Tribe List Act of 1994,
				  25
				  U.S.C. 5130.
Individual
- any human being.
Individual Monitoring
- the assessment
				  of:
1. dose equivalent by the use of
				individual monitoring devices or by the use of survey data; or
2. committed effective dose equivalent by
				bioassay or by determination of the time-weighted air concentration to which an
				individual has been exposed, that is, DAC-hours. (See the definition of
DAC-Hours
in LAC 33:XV.Chapter 4.)
Individual Monitoring Devices
- devices
				  designed to be worn by a single individual for the assessment of dose
				  equivalent. For purposes of these regulations,
personnel
				  dosimeter
and
dosimeter
are equivalent terms.
				  Examples of individual monitoring devices are film badges, thermoluminescence
				  dosimeters (TLDs), pocket ionization chambers, and personal air sampling
				  devices.
Inspection
-an official examination or
				  observation including, but not limited to, tests, surveys, and monitoring to
				  determine compliance with rules, regulations, orders, requirements, and
				  conditions of the department and/or administrative authority.
Instrument Traceability
-the ability to show
				  that an instrument has been calibrated at specified time intervals using a
				  national standard or a transfer standard. If a transfer standard is used, the
				  calibration must be at a laboratory accredited by a program that requires
				  continuing participation in measurement quality assurance with the National
				  Institute of Standards and Technology or other equivalent national or
				  international programs.
Interlock
-a device arranged or connected
				  such that the occurrence of an event or condition is required before a second
				  event or condition can occur or continue to occur.
Internal Dose
-that portion of the dose
				  equivalent received from radioactive material taken into the body.
Ionizing Radiation
-any electromagnetic or
				  particulate radiation capable of producing ions, directly or indirectly, in its
				  passage through matter. It includes any or all of the following: alpha rays,
				  beta rays, gamma rays, X-rays, neutrons, high-speed electrons, high-speed
				  protons, and other atomic particles, but not sound or radio waves, or visible,
				  infrared, or ultraviolet light.
Lens Dose Equivalent (LDE)
- the external
				  exposure of the lens of the eye, which is taken as the dose equivalent at a
				  tissue depth of 0.3 centimeter (300 mg/cm2).
License Issuing Authority
-the licensing
				  agency that issued the license, i.e. the department, the U.S. Nuclear
				  Regulatory Commission, or the appropriate agency of an agreement state.
Licensed (or Registered) Material
-
				  radioactive material received, possessed, used, transferred, or disposed of
				  under a general or specific license (or registration) issued by the
				  department.
Licensee
-any person who is licensed by the
				  department in accordance with the act and regulations promulgated by the
				  administrative authority (R.S.
				  30:2105).
Licenses-general licenses
and
specific licenses
.
1.
General License
-a license effective pursuant to regulations
				promulgated by the administrative authority without the filing of an
				application to transfer, acquire, own, possess, or use quantities of, or
				devices or equipment utilizing, byproduct, source or special nuclear materials,
				technologically enhanced natural radioactive material, or other radioactive
				material occurring naturally or produced artificially.
2.
Specific License
-a
				license issued after application to the department to use, manufacture,
				produce, transfer, receive, acquire, own, or possess quantities of, or devices
				or equipment utilizing byproduct, source, or special nuclear materials,
				technologically enhanced natural radioactive material, or other radioactive
				material occurring naturally or produced artificially (R.S.
				30:2105).
Licensing State
-any state with regulations
				  equivalent to or more stringent than "Suggested State Regulations for Control
				  of Radiation" relating to, and an effective program for, the regulatory control
				  of naturally occurring or accelerator-produced radioactive material
				  (NARM).
Limits (Dose Limits)
-the permissible upper
				  bounds of radiation doses.
Lost
or
Missing Licensed
(
or
Registered) Material
-licensed (or
				  registered) material 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.
Lost
or
Missing Licensed (or
				  Registered) Source of Radiation
-licensed (or registered) source of
				  radiation whose location is unknown. This definition includes but is not
				  limited to, radioactive material that has been shipped but has not reached its
				  planned destination and whose location cannot be readily traced in the
				  transportation system.
Low Dose-Rate Remote Afterloader
-a
				  brachytherapy device that remotely delivers a dose rate of less than or equal
				  to 2 gray (200 rads) per hour at the point or surface where the dose is
				  prescribed.
Major Processor
-a user processing,
				  handling, or manufacturing radioactive material exceeding Type A quantities as
				  unsealed sources of material, or exceeding four times Type B quantities as
				  sealed sources, but not including nuclear medicine programs, universities,
				  industrial radiographers, or small industrial programs. Type A and B quantities
				  are defined in
				  10
				  CFR 71.4.
Management
-the chief executive officer or
				  that individual's designee.
Manual Brachytherapy
-a type of
				  brachytherapy in which the brachytherapy sources (e.g., seeds, ribbons) are
				  manually placed topically on or inserted either into the body cavities that are
				  in close proximity to a treatment site or directly into the tissue
				  volume.
Medical Event
-an event that meets the
				  criteria in LAC 33:XV.613.A, 712.A, or 915.A.
Medical Institution
-an organization in
				  which several medical disciplines are practiced and that has inpatient
				  facilities.
Medical Use
-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
				  as defined in this Section.
Medium Dose-Rate Remote Afterloader
-a
				  brachytherapy device that remotely delivers a dose rate of greater than 2 gray
				  (200 rads), but less than 12 gray (1200 rads), per hour at the point or surface
				  where the dose is prescribed.
Member of the Public
-any individual, except
				  when that individual is receiving an occupational dose.
Metric Prefixes and Abbreviations
-
c
centi
(=10-2)
f
femto
(=10-15)
m
milli
(=10-3)
k
kilo
(=103)
µ
micro
(=10-6)
M
mega
(=106)
n
nano
(=10-9)
G
giga
(=109)
P
pico
(=10-12)
T
tera
(=1012)
Minor
- an individual less than 18 years of
				  age.
Mobile Medical Service
- the transportation
				  of radioactive material to, and its medical use at, the client's
				  address.
Mobile Nuclear Medicine Service
- the
				  transportation and medical use of radioactive material.
Monitoring
- the measurement of radiation,
				  radioactive material concentrations, surface area activities, or quantities of
				  radioactive material and the use of the results of these measurements to
				  evaluate potential exposures and doses. For purposes of these regulations,
radiation monitoring
and
radiation protection
				  monitoring
are equivalent terms.
Nationally Tracked Source
- a sealed source
				  containing a quantity equal to or greater than the Category 1 or Category 2
				  levels of any radioactive material listed in LAC 33:XV.399.Appendix G. 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 that 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.
Natural Radioactivity- radioactivity
from
				  naturally occurring radioactive materials (NORM).
Naturally Occurring or Accelerator-Produced
				  Radioactive Material (NARM)
- any nuclide that is radioactive in its
				  natural physical state (i.e., not man-made) or that has been made radioactive
				  by exposure to an accelerator beam. This material does not include source,
				  byproduct, or special nuclear material.
Nuclear Regulatory Commission (NRC)
- the
				  U.S. Nuclear Regulatory Commission or its duly authorized
				  representatives.
Occupational Dose
- the dose received by an
				  individual in the course of employment in which the individual's assigned
				  duties for the licensee or registrant involve exposure to sources of radiation
				  and/or radioactive material from licensed and unlicensed sources of radiation,
				  whether in the possession of the licensee, registrant, or other person.
				  Occupational dose does not include dose received: from background radiation,
				  from any medical administration the individual has received, from exposure to
				  individuals administered radioactive material and released in accordance with
				  LAC 33:XV.725, from voluntary participation in medical research programs, or as
				  a member of the public.
Ophthalmic Physicist
-an individual
				  who:
a. meets the requirements in LAC
				33:XV.719.N.1.b and 763.M; and
b.
				is identified as an ophthalmic physicist on a:
i. specific medical use license issued by the
				NRC or an agreement state;
ii.
				permit issued by a NRC or agreement state broad scope medical use
				licensee;
iii. medical use permit
				issued by a NRC master material licensee; or
iv. permit issued by a NRC master material
				licensee broad scope medical use permittee.
Ore Refineries
- all processors of ore
				  containing natural radioactivity.
Output
- the exposure rate, dose rate, or a
				  quantity related in a known manner to these rates from a brachytherapy source
				  or a teletherapy unit, a remote afterloader, or a gamma stereotactic
				  radiosurgery unit for a specified set of exposure conditions.
Package
- the packaging together with its
				  radioactive contents as presented for transport.
Particle Accelerator
-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 1 megaelectron volt.
Patient Intervention
-actions by the patient
				  or human research subject, whether intentional or unintentional, such as
				  dislodging or removing treatment devices or prematurely terminating the
				  administration.
Person
- any individual, corporation,
				  partnership, firm, association, trust, estate, public or private institution,
				  group, agency, political subdivision of this state or any other state or
				  political subdivision or agency thereof, and any legal successor,
				  representative, agent, or agency of the foregoing, other than the U.S. Nuclear
				  Regulatory Commission or federal government agencies licensed by the U.S.
				  Nuclear Regulatory Commission (R.S.
				  30:2105).
Personnel-Monitoring Equipment
- devices such
				  as film badges, pocket dosimeters, or thermoluminescent dosimeters designed to
				  be worn or carried by an individual for the purpose of estimating the dose
				  received by the individual.
Pharmacist
- any individual licensed by a
				  state or territory of the United States, the District of Columbia, or the
				  Commonwealth of Puerto Rico to practice pharmacy.
Physician
- a medical doctor or doctor of
				  osteopathy licensed by a state or territory of the United States, the District
				  of Columbia, or the Commonwealth of Puerto Rico to prescribe drugs in the
				  practice of medicine, or who is authorized to practice medicine under the
				  provisions of
				  R.S.
				  37:1261 etseq.
Podiatrist
- an individual licensed by a
				  state or territory of the United States, the District of Columbia, or the
				  Commonwealth of Puerto Rico to practice podiatry.
Positron Emission Tomography (PET) Radionuclide
				  Production Facility
-a facility operating a cyclotron or accelerator
				  for the purpose of producing PET radionuclides.
Preceptor
- an individual who provides,
				  directs, or verifies the training and experience required for an individual to
				  become an authorized user, an authorized medical physicist, an authorized
				  nuclear pharmacist, or a radiation safely officer.
Prescribed Dosage
- the quantity of
				  radiopharmaceutical activity as documented:
1. in a written directive; or
2. either in the diagnostic clinical
				procedures manual or in any appropriate record in accordance with the
				directions of the authorized user for diagnostic procedures.
Prescribed Dose-
1. for gamma stereotactic radiosurgery, the
				total dose as documented in the written directive;
2. for teletherapy, the total dose and dose
				per fraction as documented in the written directive; or
3. for manual brachytherapy, either the total
				source strength and exposure time or the total dose, as documented in the
				written directive; or
4. for remote
				brachytherapy afterloaders, the total dose and dose per fraction in the written
				directive.
Principal Activities
- activities authorized
				  by the license that are essential to achieving the purpose(s) for which the
				  license was issued or amended. Storage during which no licensed material is
				  accessed for use or disposal and activities incidental to decontamination or
				  decommissioning are not principal activities.
Protective Apron
- an apron made of
				  radiation-attenuating materials used to reduce exposure to radiation.
Public Dose
- the dose received by a member
				  of the public from exposure to sources of radiation and/or radioactive material
				  released from licensed or registered operations. Public dose does not include
				  occupational dose, dose received from background radiation, dose received from
				  any medical administration the individual has received, dose received from
				  exposure to individuals administered radioactive material and released in
				  accordance with LAC 33:XV.725, or dose received from voluntary participation in
				  medical research programs.
Pulsed Dose-Rate Remote Afterloader
- a
				  special type of remote afterloading brachytherapy device that uses a single
				  source capable of delivering dose rates in the "high dose-rate" range,
				  but:
1. is approximately one-tenth of
				the activity of typical high dose-rate remote afterloader sources;
				and
2. is used to simulate the
				radiobiology of a low dose-rate treatment by inserting the source for a given
				fraction of each hour.
Pyrophoric Liquid
- any liquid that ignites
				  spontaneously in dry or moist air at or below 130°F (54.4°C), or any
				  solid material, other than one classed as an explosive, that under normal
				  conditions is liable to cause fires through friction, retained heat from
				  manufacturing or processing, or that 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.
Qualified Expert
- an individual who has
				  demonstrated to the satisfaction of the department that he or she possesses the
				  knowledge and training to measure ionizing radiation parameters, to evaluate
				  safety techniques, and to advise regarding radiation protection needs.
Quality Factor (Q)
- the modifying factor,
				  listed in Tables I and II of this Section, that is used to derive dose
				  equivalent from absorbed dose.
Rad
- a special unit of absorbed dose. One
				  rad equals one hundredth (0.01) of a Joule per kilogram of material. For
				  example, if tissue is the material of interest, then 1 rad equals 100 ergs per
				  gram of tissue. The SI unit of absorbed dose is the gray (Gy). One gray is
				  equal to one Joule per kilogram.
Radiation
- any electromagnetic or ionizing
				  radiation including gamma rays and X-rays, alpha and beta particles, high-speed
				  electrons, neutrons, high-speed protons, and other nuclear particles, but not
				  sound waves. (R.S.
				  30:2105.) Unless specifically stated
				  otherwise, these regulations apply only to ionizing radiation.
Radiation Area
-an area, accessible to
				  individuals, in which radiation levels could result in an individual receiving
				  a dose equivalent in excess of five millirems (0.05 millisievert) in one hour
				  at 30 centimeters from the radiation source or from any surface that the
				  radiation penetrates.
Radiation Machine
- any device capable of
				  producing radiation except those which produce radiation only from radioactive
				  material.
Radiation Safety Officer
- an individual
				  who:
1. meets the requirements in LAC
				33:XV.763.A. 1 or 3.a and M; or
2.
				is identified as a
radiation safety officer
on:
a. a specific medical use license issued by
				the agreement state or Nuclear Regulatory Commission; or
b. a medical use permit issued by a Nuclear
				Regulatory Commission master material licensee.
Radiation Therapy Simulation System
- a
				  radiographic or fluoroscopic X-ray system intended for localizing the volume to
				  be exposed during radiation therapy and confirming the position and size of the
				  therapeutic irradiation field.
Radioactive Material
- any material, whether
				  solid, liquid, or gas, that emits radiation spontaneously (R.S.
				  30:2105).
Radioactivity
- the transformation of
				  unstable atomic nuclei by the emission of radiation. A unit of quantity of
				  radioactivity is the curie (Ci). The SI unit of measurement of radioactivity is
				  the Becquerel (Bq), which is equal to one transformation per second (tps). One
				  curie is equal to 3.7 x
				  1010Bq.
Radiological Physicist
- an individual
				  who:
1. is certified in Therapeutic
				Radiological Physics or Radiological Physics by the American Board of
				Radiology,or in radiation oncology physics by the American Board of Medical
				Physics; or
2. has a master's or a
				doctor's degree in physics, biophysics, radiological physics, health physics,
				or nuclear engineering; has had one year's full-time training in therapeutic
				radiological physics; and has had one year's full-time work experience in a
				radiotherapy facility where the individual's duties involved calibration and
				spot checks of a medical accelerator or a sealed source teletherapy unit;
				or
3. has a bachelor's degree in
				physics, biophysics, radiological physics, health physics, or nuclear
				engineering; and has performed full-time radiation physics work for a period of
				at least five years in therapeutic radiological physics in radiotherapy
				facilities where the individual's duties involved calibration and spot checks
				of a medical accelerator or sealed source teletherapy unit.
Recordable Events
- in medical procedures,
				  the administration of:
1. a
				radiopharmaceutical or radiation without a written directive when a written
				directive is required;
2. a
				radiopharmaceutical or radiation when a written directive is required, without
				daily recording of each administered radiopharmaceutical dosage or radiation
				dose in the appropriate record;
3. a
				radiopharmaceutical dosage greater that 30 microcuries of either sodium iodide
				I-125 or I-131 when both:
a. the administered
				dosage differs from the prescribed dosage by more than 10 percent of the
				prescribed dosage; and
b. the
				difference between the administered dosage and prescribed dosage exceeds 15
				microcuries;
4. a
				therapeutic radiopharmaceutical dosage, other than sodium iodide I-125 or
				I-131, when the administered dosage differs from the prescribed dosage by more
				than 10 percent of the prescribed dosage;
5. a teletherapy radiation dose when the
				calculated weekly administered dose exceeds the weekly prescribed dose by 15
				percent or more; or
6. a
				brachytherapy radiation dose when the calculated administered dose differs from
				the prescribed dose by more than 10 percent of the prescribed dose.
Registrant
- any person who owns or possesses
				  any radioactive material or device capable of emitting radiation and who is
				  legally obligated to register with the department pursuant to these regulations
				  and the act.
Registration
- the identification of any
				  material or device capable of emitting radiation, together with such other
				  information as the owner of such material or device is required to furnish by
				  rules and regulations adopted hereunder (R.S.
				  30:2105).
Regulations of the U.S. Department of Transportation
				  (U. S. DOT)
- the regulations in  49 CFR 100- 189.
Rem
- a measure of the dose of any radiation
				  to body tissue in terms of its estimated biological effect relative to a dose
				  received from an exposure to one Roentgen (R) of X-rays. One millirem (mRem) is
				  equal to 0.001 Rem. Rem is a special unit of dose equivalent. (See
dose
				  equivalent)
For the purpose of these regulations, any of the following
				  is considered to be equivalent to a dose of one Rem:
1. an exposure of one Roentgen of X or gamma
				radiation;
2. absorbed dose of one
				rad due to X, gamma, or beta radiation;
3. an absorbed dose of 0.05 rad due to
				particles heavier than protons and with sufficient energy to reach the lens of
				the eye; or
4. an absorbed dose of
				0.1 rad due to neutrons or high-energy protons.
(NOTE: If it is more convenient to measure the neutron flux,
				  or equivalent, than to determine the neutron absorbed dose in rads, one Rem of
				  neutron radiation may, for purposes of these regulations, be assumed to be
				  equivalent to 14 million (1.4 x 107) neutrons per sjuare centimeter incident
				  upon the body; or, if there exists sufficient information to estimate with
				  reasonable accuracy the approximate distribution in energy of the neutrons, the
				  incident number of neutrons per square centimeter equivalent to one Rem may be
				  estimated from the table in LAC 33:XV.199.Appendix A.)
Research and Development
- theoretical
				  analysis, exploration, or experimentation; or 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 radiation or radioactive material to human
				  beings.
Residual Radioactivity
- 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 LAC 33:XV.Chapter 4.
Restricted Area
- 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. A 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.
Roentgen (R)
- a special unit of exposure.
				  One Roentgen equals 2.58 x 10-4 Coulomb/kilogram of
				  air. (See
exposure)
Sealed Source
-any byproduct material that is
				  encased in a capsule designed to prevent leakage or escape of the byproduct
				  material.
Sealed Source and Device Registry
- the
				  national registry that contains all the registration certificates, generated by
				  both the U.S. 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 products.
Shallow Dose Equivalent
				  (Hs)
- applies to the external exposure of the
				  skin of the whole body or the skin of an extremity, and is taken as the dose
				  equivalent at a tissue depth of 0.007 centimeter (7
				  mg/cm2).
SI
- the International System of
				  Units.
Sievert (Sv)
-the SI unit of any of the
				  quantities expressed as dose equivalent; it is equal to one Joule per kilogram.
				  One Rem is equal to 0.01 Sievert. The dose equivalent in sieverts is equal to
				  the absorbed dose in grays multiplied by the quality factor (1 Sv = 100
				  rems).
Site Area Emergency
- events that 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.
Site Boundary
- that line beyond which the
				  land or property is not owned, leased, or otherwise controlled by the licensee
				  or registrant.
Source Material
- uranium or thorium, or any
				  combination thereof, in any physical or chemical form; or ores that contain by
				  weight 0.05 percent or more of uranium, thorium, or any combination thereof.
				  Source material does not include special nuclear material as hereinafter
				  defined (R.S.
				  30:2105).
Source of Radiation
- any radioactive
				  material or any device or equipment emitting or capable of producing radiation
				  (R.S.
				  30:2105).
Source Traceability
- the ability to show
				  that a radioactive source has been calibrated either by the national standards
				  laboratory of the National Institute of Standards and Technology (NIST) or by a
				  laboratory that participates in a continuing measurement quality assurance
				  program with NIST or other equivalent national or international
				  programs.
Special Form Material
- radioactive material
				  which satisfies the following:
1. it
				is either a single solid piece or is contained in a sealed capsule that can be
				opened only by destroying the capsule;
2. the piece or capsule has at least one
				dimension not less than 5 millimeters (0.197 inch);
3. it satisfies the test requirements of
				10 CFR
				71.75; and
4. a special form encapsulation designed in
				accordance with the requirements of
				10
				CFR 71.4(o) in effect on
				June 30, 1983, and constructed prior to July 1, 1985, may continue to be used.
				A special form encapsulation either designed or constructed after June 30,
				1985, must meet requirements of this Section applicable at the time of its
				design or construction.
Special Nuclear Material
- either of the
				  following types of material:
1.
				plutonium, uranium-233, uranium enriched in the isotope U-233 or in the isotope
				U-235, and any other material that the U.S. Nuclear Regulatory Commission,
				pursuant to the provisions of Section 51 of the Atomic Energy Act of 1954, as
				amended, determines to be special nuclear material, but does not include source
				material; or
2. any material
				artificially enriched by any of the foregoing, but not including source
				material. (R.S.
				30:2105)
Special Nuclear Material in Quantities Not Sufficient
				  to Form Critical Mass
- uranium enriched in the isotope U-235 in
				  quantities not exceeding 350 grams of contained U-235; uranium-233 in
				  quantities not exceeding 200 grams; plutonium in quantities not exceeding 200
				  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 above 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 "1" (i.e., unity).
				  For example, the following quantities in combination would not exceed the
				  limitation and are within the formula:
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				  to view image
SPOC
-the Office of Environmental Compliance,
				  Emergency and Radiological Services Division, Single Point of Contact
				  (SPOC).
State
-a state of the United States, the
				  District of Columbia, the Commonwealth of Puerto Rico, the Virgin Islands,
				  Guam, American Samoa, and the Commonwealth of the Northern Mariana
				  Islands.
Stereotactic Radiosurgery
- the use of
				  external radiation in conjunction with a stereotactic guidance device to very
				  precisely deliver a therapeutic dose to a tissue volume.
Structured Educational Program
- an
				  educational program designed to impart particular knowledge and practical
				  education through interrelated studies and supervised training.
Survey
- an evaluation of the production,
				  use, release, disposal, transfer, and/or presence of sources of radiation under
				  a specific set of conditions to determine actual or potential radiation
				  hazards. When appropriate, such evaluation includes, but is not limited to,
				  tests, physical examination, and measurements of levels of radiation or
				  concentrations of radioactive materials present.
Technologically Enhanced Natural Radioactive Material
				  (hereinafter referred to as TENR)
- natural sources of radiation that
				  would not normally appear without some technological activity not expressly
				  designed to produce radiation (R.S.
				  30:2105).
Teletherapy
- therapeutic irradiation in
				  which the source of radiation is at a distance from the body.
Teletherapy Physicist
- refer to radiological
				  physicist.
Temporary Jobsite
- any location where
				  sources of radiation are used other than the location(s) listed in a license or
				  registration certificate for nonlicensed sources of radiation.
Test
- the process of verifying compliance
				  with an applicable regulation.
Therapeutic Dosage
- a dosage of unsealed
				  radioactive material that is intended to deliver a radiation dose to a patient
				  or human research subject for palliative or curative treatment.
Therapeutic Dose
- a radiation dose delivered
				  from a source containing radioactive material to a patient or human research
				  subject for palliative or curative treatment.
These Regulations
- all chapters of the
				  Louisiana Radiation Protection Regulations (LAC 33:XV).
Total Effective Dose Equivalent (TEDE)
-the
				  sum of the effective dose equivalent for external exposures and the committed
				  effective dose equivalent for internal exposures.
Traceable to National Standards
- see
Instrument Traceability
or
Source
				  Traceability.
Treatment Site
- the anatomical description
				  of the tissue intended to receive a radiation dose, as described in a written
				  directive.
Tribal Official
-the highest ranking
				  individual that represents tribal leadership, such as the chief, president, or
				  tribal council leadership.
Type of Use
- use of radioactive material as
				  described in LAC 33:XV.729, 731, 735, 739, 741, or 747.
Unit Dosage
- a dosage prepared for medical
				  use for administration as a single dosage to a patient or human research
				  subject without any further manipulation of the dosage after it is initially
				  prepared.
United States
-when this term is used in a
				  geographical sense, it includes Puerto Rico, all territories, and possessions
				  of the United States.
Units of Activity
- for purposes of these
				  regulations, activity is expressed in the SI unit of becquerel (Bq) or in the
				  special unit of curie (Ci), or their multiples, or disintegrations or
				  transformations per unit of time:
1.
				one becquerel (Bq) = 1 disintegration or transformation per second (dps or
				tps).
2. one curie (Ci) = 3.7E+10
				disintegrations or transformations per second (dps or tps) = 3.7E+10 becquerel
				(Bq) = 2.22E+12 disintegrations or transformations per minute (dpm or
				tpm).
Units of Exposure and Dose
-
1. As used in these regulations, the unit of
				exposure is the coulomb per kilogram (C/kg) of air. One roentgen is equal to
				2.58E-4 coulomb per kilogram of air.
2. As used in these regulations, the units of
				dose are:
a.
Gray (Gy)
- the
				SI unit of absorbed dose. One gray is equal to an absorbed dose of 1 joule per
				kilogram (100 rad).
b.
Rad
- the special unit of absorbed dose. One rad is equal to an
				absorbed dose of 100 erg per gram or 0.01 joule per kilogram (0.01
				Gy).
c.
Rem
- the
				special unit of any of the quantities expressed as dose equivalent. Lhe dose
				equivalent in rem is equal to the absorbed dose in rad multiplied by an
				appropriate quality factor (1 rem = 0.01 Sv).
d.
Sievert
- the SI unit of
				any of the quantities expressed as dose equivalent. Lhe dose equivalent in
				sieverts is equal to the absorbed dose in gray multiplied by an appropriate
				quality factor (1 Sv = 100 rem).
3. As used in these regulations, the quality
				factors for converting absorbed dose to dose equivalent are shown in Table I.
Table I
Quality Factors and Absorbed
							 Dose Equivalencies
Type of Radiation
Quality Factor (Q)
Absorbed Dose Equal to a Unit Dose
							 Equivalenta
X, gamma, or beta radiation and high speed
							 electrons
1
1.0
Alpha particles, multiple-charged particles, fission
							 fragments, and heavy particles of unknown charge
20
0.05
Neutrons of unknown energy
10
0.1
High energy protons
10
0.1
aThis value is the absorbed dose
				  in gray equal to 1 Sv or the absorbed dose in rad equal to 1
				  rem.
4. If it is more
				convenient to measure the neutron fluence rate than to determine the neutron
				dose equivalent rate in sievert per hour or rem per hour, as provided in
				Paragraph 3 of this definition, 0.01 Sv (1 rem) of neutron radiation of unknown
				energies may, for purposes of these regulations, be assumed to result from a
				total fluence of 25 million neutrons per square centimeter incident upon the
				body. If sufficient information exists to estimate the approximate energy
				distribution of the neutrons, the licensee or registrant may use the fluence
				rate per unit dose equivalent or the appropriate Q value from Lable II to
				convert a measured tissue dose in gray or rad to dose equivalent in sievert or
				rem.
Table II
Mean Quality Factors, Q, and
							 Fluence Per Unit Dose Equivalent For Monoenergetic Neutrons
Neutron Energy (MeV)
Quality
							 Factora(Q)
Fluence per Unit Dose Equivalent (neutrons cm 
							 -2
							 rem-1)
Fluence per Unit Dose
							 Equivalentb (neutrons cm 
							 -2
							 Sv-1)
2.5E-8 (Thermal)
2
980E+6
980E+8
1E-7
2
980E+6
980E+8
1E-6
2
810E+6
810E+8
1E-5
2
810E+6
810E+8
1E-4
2
840E+6
840E+8
1E-3
2
980E+6
980E+8
1E-2
2.5
1010E+6
1010E+8
1E-1
7.5
170E+6
170E+8
5E-1
11
39E+6
39E+8
1
11
27E+6
27E+8
2.5
9
29E+6
29E+8
5
8
23E+6
23E+8
7
7
24E+6
24E+8
10
6.5
24E+6
24E+8
14
7.5
17E+6
17E+8
20
8
16E+6
16E+8
40
7
14E+6
14E+8
60
5.5
16E+6
16E+8
1E+2
4
20E+6
20E+8
2E+2
3.5
19E+6
19E+8
3E+2
3.5
16E+6
16E+8
4E+2
3.5
14E+6
14E+8
aValue of quality factor (Q) at
				  the point where the dose equivalent is maximum in a 30-centimeter diameter
				  cylinder tissue -equivalent phantom.
bMonoenergetic neutrons incident
				  normally on a 30-centimeter diameter cylinder tissue-equivalent phantom.
Unrefined and Unprocessed Ore
-ore in its
				  natural form prior to any processing, such as grinding, roasting,
				  beneficiating, or refining. Processing does not include sieving or
				  encapsulation of ore, or preparation of samples for laboratory analysis.
Unrestricted Area (an Uncontrolled Area)
-
				  an area, access to which is neither limited nor controlled by the licensee or
				  registrant. For purposes of these regulations,
uncontrolled
				  area
is an equivalent term.
U.S. Department of Energy
- the Department of
				  Energy established by Public Law 95-91, August 4, 1977, 91 Stat. 565,
				  42
				  U.S.C. 7101 et seq., to the extent that the
				  Department of Energy exercises functions formerly vested in the U.S. Atomic
				  Energy Commission, its chairman, members, officers, and components and
				  transferred to the U.S. Energy Research and Development Administration and to
				  the administrator thereof pursuant to Section 104(b), (c), and (d) of the
				  Energy Reorganization Act of 1974 (Public Law 93-438, October 11, 1974, 88
				  Stat. 1233 at 1237, effective January 19, 1975) and retransferred to the
				  Secretary of Energy pursuant to
				  Section
				  301(a) of the
				  Department of Energy Organization Act (Public Law 95-91, August 4, 1977, 91
				  Stat. 565 at 577-578,
				  42 U.S.C. 7151,
				  effective October 1, 1977).
Waste
-those low-level radioactive wastes
				  that are acceptable for disposal in a land disposal facility. For the purposes
				  of this definition, low-level waste has the same meaning as in the Low-Level
				  Radioactive Waste Policy Act, PL. 96-573, as amended by P.L. 99-240, effective
				  January 15, 1986; that is, radioactive waste:
1. not classified as high-level radioactive
				waste, transuranic waste, spent nuclear fuel, or byproduct material as defined
				in section ll.e.(2) of the Atomic Energy Act (uranium or thorium tailings and
				waste) and Paragraphs 3, 4,and 5 in the definition of
byproduct
				material
of this Section; and
2. classified as low-level radioactive waste
				consistent with existing law and in accordance with Paragraph 1 above by the
				U.S. Nuclear Regulatory Commission.
Waste-Handling Licensees
- persons licensed
				  to receive and store radioactive wastes prior to disposal and/or persons
				  licensed to dispose of radioactive waste.
Week
- seven consecutive days starting on
				  Sunday.
Whole Body
- for purposes of external
				  exposure, head, trunk, including male gonads, arms above the elbow, or legs
				  above the knee.
Worker
- an individual engaged in work under
				  a license or registration issued by the department and controlled by a licensee
				  or registrant, but not including the licensee or registrant.
Working Level (WL)
- any combination of
				  short-lived radon daughters (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, without regard to the
				  degree of equilibrium, that will result in the ultimate emission of 1.3 x
				  105 MeV of alpha particle energy.
Working-Level Month (WLM)
- the occupational
				  exposure incurred in one working month of 170 hours by individuals in an
				  atmosphere containing radon daughter products; e.g., one working month in a
				  mine atmosphere containing one working level of radon daughter products equals
				  one WLM.
Written Directive
- an order in writing for a
				  specific patient or human research subject, dated and signed by an authorized
				  user prior to the administration of a radiopharmaceutical or radiation, except
				  as specified in Paragraph 6 of this definition, containing the following
				  information:
1. for any administration
				of quantities greater than 30 microcuries of either sodium iodide L125 or
				1-131: the dosage;
2. for a
				therapeutic administration of a radiopharmaceutical other than sodium iodide
				1-125 or 1-131: the radiopharmaceutical, dosage, and route of
				administration;
3. for gamma
				stereotactic radiosurgery: target coordinates, collimator size, plug pattern,
				and total dose;
4. for teletherapy:
				the total dose, dose per fraction, treatment site, and overall treatment
				period;
5. for high-dose-rate
				remote afterloading brachytherapy: the radioisotope, treatment site, and total
				dose; or
6. for all other brachy
				therapy:
a. prior to implantation: the
				radioisotope, number of sources, and source strengths; and
b. after implantation but prior to completion
				of the procedure: the radioisotope, treatment site, and total source strength
				and exposure time (or, equivalently, the total dose).
Year-
the period of time beginning in
				  January used to determine compliance with the provisions of these regulations.
				  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.