New Hampshire Code of Administrative Rules
He - Department of Health and Human Services
Subtitle He-P - Former Division of Public Health Services
Chapter He-P 4000 - NEW HAMPSHIRE RULES FOR THE CONTROL OF RADIATION
Part He-P 4003 - DEFINITIONS
Section He-P 4003.01 - Definitions

(a) "A1" means the maximum activity of special form radioactive material permitted in a Type A package, as defined in He-P 4037.

(b) "A2" means the maximum activity of radioactive material, other than special form radioactive material, permitted in a Type A package, as defined in He-P 4037.

(c) "Absorbed dose" means the energy imparted by ionizing radiation per unit mass of irradiated material, expressed in units of the gray (Gy) or the rad.

(d) "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 million electron volts (1MeV) . This term includes "particle accelerator."

(e) "Accelerator-produced radioactive material" means any material made radioactive by a particle accelerator.

(f) "Act" means State of New Hampshire Revised Statutes Annotated (RSA), Chapter 125-F, Sections 1-25, Radiological Health Program.

(g) "Activity" means the rate of disintegration or transformation or decay of radioactive material in units of the Becquerel (Bq) or the curie (Ci) .

(h) "Adult" means an individual 18 or more years of age.

(i) "Agreement State" means 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 274b. of the Atomic Energy Act of 1954, as amended (73 Stat. 689) .

(j) "Airborne radioactive material" means any radioactive material dispersed in the air in the form of dusts, fumes, particulates, mists, vapors, or gases.

(k) "Airborne radioactivity area" means a room, enclosure, or area in which airborne radioactive materials, composed wholly or partly of licensed material, exist in concentrations:

(l) "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.

(m) "Annual limit on intake (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 and 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 Sv (5 rem) or a committed dose equivalent of 0.5 Sv (50 rem) to any individual organ or tissue.

(n) "As low as is reasonably achievable (ALARA) " means 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 socio-economical considerations, and in relation to utilization of nuclear energy and licensed or registered sources of radiation in the public interest.

(o) "Assigned protection factor (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 trained and fitted users.

(p) "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 (SARs) and self-contained breathing apparatus (SCBA) units.

(q) "Background radiation" means:

(r) "Becquerel (Bq) " means a unit of activity where one becquerel is equal to one disintegration per second (dps) or transformation per second (tps) .

(s) "Bioassay" means the determination of kinds, quantities or concentrations, and 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. This term includes "radiobioassay."

(t) "Brachytherapy" means 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.

(u) "Bureau of radiological health (BRH) " means the former name of the radiological health program of the department of health and human services.

(v) "Byproduct material" means:

(w) "Calibration" means the determination of:

(x) "Chelating agent" means amine polycarboxylic acids, hydroxycarboxylic acids, gluconic acid, and polycarboxylic acids.

(y) "Class" means a classification scheme for inhaled material according to its rate of clearance from the pulmonary region of the lung. This term includes "inhalation class" or "lung class."

(z) "Class D" means a class having a range of clearance half-times of less than 10 days.

(aa) "Class W" means a class having a range of clearance half-times of 10 to 100 days.

(ab) "Class Y" means a class having a range of clearance half-times of greater than 100 days.

(ac) "Clearance half time" means the time required for activity in the pulmonary region of the lung to be reduced by radioactive decay and biological processes to one half its value.

(ad) "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.

(ae) "Commencement of construction" means taking any action defined as "construction" or any other activity at the site of a facility subject to the rules in this part that has a reasonable nexus to radiological health and safety.

(af) "Commissioner" means the commissioner of the New Hampshire department of health and human services, or his or her designee.

(ag) "Committed dose equivalent (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 50-year period following the intake.

(ah) "Committed effective dose equivalent (HE,50) " is the sum of the products of the weighting factors (wT) applicable to each of the body organs or tissues that are irradiated and the committed dose equivalent (HT,50) to each of these organs or tissues (HE,50 = [SIGMA]WT HT,50) .

(ai) "Condition of light work" means an inhalation rate of 1.2 cubic meters of air per hour for 2,000 hours in a year.

(aj) "Consortium" means an association of medical use licensees and a Positron Emission Tomography (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 Federal facility or a medical facility.

(ak) "Constraint" means a value above which specified license actions are required. This term includes "dose constraint."

(al) "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.

(am) "Critical group" means the group of individuals reasonably expected to receive the greatest exposure to residual radioactivity for any applicable set of circumstances.

(an) "Curie" means a unit of quantity of radioactivity in which one curie (Ci) is that quantity of radioactive material which decays at the rate of 3.7E+10 transformations per second (tps) .

(ao) "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 10 megaelectron volts and is commonly used for production of short half-life radionuclides for medical use.

(ap) "Declared pregnant woman" means a woman who has voluntarily informed her employer, 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.

(aq) "Decommission" means to remove a facility or site safely from service and reduce residual radioactivity to a level that permits:

(ar) "Decommissioning plan" means a written document that includes the licensee's planned procedures and activities for decommissioning of the facility or site.

(as) "Deep dose equivalent (Hd)," applicable to external whole-body exposure, means the dose equivalent at a tissue depth of one centimeter (1000 mg/cm2) .

(at) "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.

(au) "Depleted uranium" means the source material uranium in which the isotope uranium-235 is less than 0.711 weight percent of the total uranium present exclusive of special nuclear material.

(av) "Derived air concentration (DAC) " means the concentration of a given radionuclide in air which, if breathed by the reference man for a working year of 2,000 hours under conditions of light work, results in an intake of one ALI.

(aw) "Derived air concentration-hour" (DAC-hour) means the product of the concentration of radioactive material in air, expressed as a fraction or multiple of the derived air concentration for each radionuclide, and the time of exposure to that radionuclide, in hours.

(ax) "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.

(ay) "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 (SCBA) .

(az) "Distinguishable from background" means that the detectable concentration of a radionuclide 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.

(ba) "Dose" means a generic term that includes absorbed dose, dose equivalent, effective dose equivalent, committed dose equivalent, committed effective dose equivalent, or total effective dose equivalent. This term includes "radiation dose."

(bb) "Dose equivalent (HT) " means the product of the absorbed dose in tissue, quality factor, and all other necessary modifying factors at the body location of interest in units of the sievert (Sv) or rem.

(bc) "Dose limits" means the permissible upper bounds of radiation doses established in accordance with these rules.

(bd) "Dosimetry processor" means an individual or an organization that processes and evaluates individual monitoring devices in order to determine the radiation dose delivered to the monitoring devices.

(be) "Effective dose equivalent (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.

(bf) "Embryo/fetus" means the developing human organism from conception until the time of birth.

(bg) "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 which include entry or exit portals of sufficient size to permit human entry.

(bh) "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.

(bi) "Exposure" means being exposed to ionizing radiation or to radioactive material.

(bj) "Exposure rate" means the exposure per unit of time.

(bk) "External dose" means that portion of the dose equivalent received from any source of radiation outside the body.

(bl) "Extremity" means hand, elbow, arm below the elbow, foot, knee, and leg below the knee.

(bm) "Facility" means the location within one building, vehicle, or under one roof and under the same administrative control at which:

(bn) "Filtering facepiece" 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. This term includes "dust mask."

(bo) "Fit factor" means a 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.

(bp) "Fit test" means the use of a protocol to qualitatively or quantitatively evaluate the fit of a respirator on an individual.

(bq) "Final radiation survey" means the survey of the facility or site after decommissioning activities have been completed during which the determination is made by the licensee that the facility or site meets the DHHS/RHS's release criteria.

(br) "Former U.S. Atomic Energy Commission (AEC) or U.S. Nuclear Regulatory Commission (NRC) licensed facilities" means nuclear reactors, nuclear fuel reprocessing plants, uranium enrichment plants, or critical mass experimental facilities where AEC or NRC licenses have been terminated.

(bs) "Generally applicable environmental radiation standards" means 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.

(bt) "Gray (Gy) " means the SI unit of absorbed dose where one gray is equal to an absorbed dose of one joule per kilogram which is equal to 100 rad.

(bu) "Hazardous waste" means those wastes designated as hazardous by U.S. Environmental Protection Agency regulations in 40 CFR 261.

(bv) "Healing arts" means the diagnosis and treatment of ailments for humans.

(bw) "Helmet" means a rigid respiratory inlet covering that also provides head protection against impact and penetration.

(bx) "High radiation area" means an area, accessible to individuals, in which radiation levels could result in an individual receiving a dose equivalent in excess of one millisievert (mSv) or "0.1 rem" in one hour at 30 centimeters from any source of radiation or from any surface that the radiation penetrates.

(by) "Hood" means a respiratory inlet covering that completely covers the head and neck and may also cover portions of the shoulders and torso.

(bz) "Human use" means the internal or external administration of radiation or radioactive material to human beings.

(ca) "Individual" means any human being.

(cb) "Individual monitoring" means the assessment of:

(cc) "Individual monitoring devices" means devices designed to be worn by a single individual for the assessment of dose equivalent, and includes film badges, thermoluminescent dosimeters (TLDs), pocket ionization chambers, optically stimulated luminescence (OSL) dosimeters, and personal air sampling equipment. This term includes "personnel monitoring equipment."

(cd) "Inspection" means an official examination or observation to determine compliance with rules and orders of the DHHS/RHS.

(ce) "Instrument traceability" means the ability to show for ionizing radiation measurements that an instrument has been calibrated at specified time intervals using a national standard or a transfer standard which was calibrated at a laboratory accredited by a program which requires continuing participation in measurement quality assurance with the National Institute of Standards and Technology, or other equivalent national or international program.

(cf) "Interlock" means 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.

(cg) "Internal dose" means that portion of the dose equivalent received from radioactive material taken into the body.

(ch) "International System of Units (SI) " means the modern form of the metric system. As used in this rule, "SI" means that the measurement is in the International System of Units.

(ci) "Lens dose equivalent (LDE) " means the external exposure to the lens of the eye as the dose equivalent at a tissue depth of 0.3 centimeter (300 mg/cm2) .

(cj) "License" means a "license" as defined in RSA 125-F:3 IX, namely, "general or specific:

(ck) "Licensed material" means source material, special nuclear material, or byproduct material received, possessed, used, transferred, or disposed of under a license issued by the DHHS/RHS.

(cl) "Licensee" means:

(cm) "Licensing State" means any state with regulations or rules equivalent to the Suggested State Rules for Control of Radiation relating to, and having 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.

(cn) "Limits" means the permissible upper bounds of radiation doses.

(co) "Loose-fitting facepiece" means a respiratory inlet covering that is designed to form a partial seal with the face.

(cp) "Lost or missing licensed material or sources of radiation" means licensed or registered sources of radiation whose location is unknown or that has been shipped but has not reached its planned destination and whose location cannot be readily traced in the transportation system.

(cq) "Lost or missing sources of radiation" means licensed or registered sources of radiation whose location is unknown or that have been shipped but has not reached its planned destination and whose location cannot be readily traced.

(cr) "Major processor" means a user processing, handling, or manufacturing radioactive material exceeding Type A quantities as defined in 10 CFR 71.4 as unsealed sources or material, or exceeding 4 times Type B quantities as defined in 10 CFR Part 71.4 as sealed sources, exclusive of nuclear medicine programs, universities, or industrial radiography.

(cs) "Member of the public" means any individual, except an individual who is performing assigned duties for a licensee or registrant involving exposure to sources of radiation.

(ct) "Minor" means an individual less than 18 years of age.

(cu) "Monitoring" means the measurement of radiation levels, radioactive material concentrations, surface area activity or quantities of radioactive material and the use of the results of these measurements to evaluate potential exposures and doses.

(cv) "NARM" means any naturally occurring or accelerator-produced radioactive material other than byproduct, source, or special nuclear material.

(cw) "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 He-P 4097. 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.

(cx) "Natural radioactivity" means radioactivity of naturally occurring nuclides.

(cy) "Negative pressure respirator (tight fitting) " 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. This term includes "tight fitting negative pressure respirator."

(cz) "Nonstochastic effect" means a health effect, the severity of which varies with the dose and for which a threshold is believed to exist.

(da) "NORM" means any naturally occurring radioactive material, and excludes byproduct, source, or special nuclear material.

(db) "Nuclear facility" means any facility that uses radioactive material.

(dc) "Nuclear Regulatory Commission (NRC) " means the U.S. Nuclear Regulatory Commission or its duly authorized representatives.

(dd) "Occupational dose" means 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, or to radioactive material from licensed and unlicensed sources of radiation, whether or not the sources of radiation are in the possession of the licensee, registrant or other person, exclusive of dose received:

(de) "Package" means packaging plus its radioactive contents as presented for transport.

(df) "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.

(dg) "Person" means "person" as defined in RSA 125-F:3, XII, namely "any individual, corporation, partnership, firm, association, trust, estate, public or private institution, group, agency of this state other than the program, political subdivision of this state, any other state or political subdivision or agency, and any legal successor, representative, or agent of the foregoing, other than federal government agencies".

(dh) "Pharmacist" means "licensed pharmacist or pharmacist" as defined in RSA 318:1, VII, namely, "when not otherwise limited, means a person holding a license under RSA 318:18 and who is, therefore, legally authorized to practice the profession of pharmacy in this state."

(di) "Physician" means an individual licensed in this state to practice medicine.

(dj) "Planned special exposure" means an infrequent exposure to radiation, separate from and in addition to the annual occupational dose limits.

(dk) "Positive pressure respirator" means a respirator in which the pressure inside the respiratory inlet covering exceeds the ambient air pressure outside the respirator.

(dl) "Powered air-purifying respirator (PAPR) " means an air-purifying respirator that uses a blower to force the ambient air through air-purifying elements to the inlet covering.

(dm) "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.

(dn) "Principal activity" means an activity authorized by the license which is essential to achieving the purpose(s) for which the license was issued or amended, and excludes storage during which no licensed material is accessed for use or disposal and activity incidental to decontamination or decommissioning.

(do) "Protective apron" means an apron made of radiation-attenuating materials used to reduce exposure to radiation.

(dp) "Public dose" means the dose received by a member of the public from exposure to radiation or to radioactive material released by licensed or registered operators or to any other source of radiation under the control of a licensee or registrant. Public dose does not include occupational dose, dose received from background radiation, dose received as a patient from medical administration, dose from exposure to individuals administered radioactive material and released under He-P 4035.25, or dose from voluntary participation in medical research programs.

(dq) "Pyrophoric liquid" means any liquid that ignites spontaneously in dry or moist air at or below 130° F (54.4° C) .

(dr) "Pyrophoric solid" means any solid material, or spontaneously combustible and water-reactive 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.

(ds) "Qualified expert" means an individual having the knowledge and training to measure ionizing radiation, to evaluate safety techniques, and to advise regarding radiation protection needs, for example, individuals certified in the appropriate field by the American Board of Radiology, or the American Board of Health Physics, or the American Board of Medical Physics, or those having equivalent qualifications. With reference to the calibration of radiation therapy equipment, this term includes an individual having, in addition to the above qualifications, training and experience in the clinical applications of radiation physics to radiation therapy, for example, individuals certified in radiation oncology by the American Board of Radiology, or those having equivalent qualifications.

(dt) "Qualitative fit test (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.

(du) "Quality factor (Q) " means the modifying factor, listed in Tables 4001.1 and 4001.2 of He-P 4001.09, that is used to derive dose equivalent from absorbed dose.

(dv) "Quantitative fit test (QNFT) " means an assessment of the adequacy of respirator fit by numerically measuring the amount of leakage into the respirator.

(dw) "Quarter" means not less than 12 consecutive weeks nor more than 14 consecutive weeks arranged so that the first calendar quarter begins in January and that in subsequent calendar quarters 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. This term includes "calendar quarter."

(dx) "Rad" means the special unit of absorbed dose where one rad is equal to an absorbed dose of 100 ergs per gram or 0.01 joule per kilogram.

(dy) "Radiation" means "radiation" as defined in RSA 125-F:3, XIV, namely, "ionizing radiation and nonionizing radiation:

(dz) "Radiation area" means any area, accessible to individuals, in which radiation levels could result in an individual receiving a dose equivalent in excess of 0.05 mSv or 0.005 rem in one hour at 30 centimeters from the source of radiation or from any surface that the radiation penetrates.

(ea) "Radiation equipment" means "radiation equipment" as defined in RSA 125-F:3, XV, namely, "any manufactured product or device, the component part of such product or device, or any machine or system which during operation is able to generate or emit radiation, except those which emit radiation only from radioactive material." The term includes "radiation machine".

(eb) "Radiation safety officer" means an individual who:

(ec) "Radioactive material" means "radioactive material" as defined in RSA 125-F:3, XVI, namely, "any material, whether solid, liquid, or gas, which emits radiation spontaneously. It includes artificially produced, byproduct, naturally occurring, source, and special nuclear materials." The term includes byproduct material.

(ed) "Radioactivity" means the transformation of unstable atomic nuclei by the emission of radiation.

(ee) "Radiological health section (RHS) " means the radiological health section of the division of public health services in the NH department of health and human services.

(ef) "Reference man" means a hypothetical aggregation of human physical and physiological characteristics determined 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.

(eg) "Registrant" means any person who is registered with the DHHS/RHS and is legally obligated to register with the DHHS/RHS pursuant to these rules and the Act.

(eh) "Registration" means "registration" as defined in RSA 125-F:3, XVIII, namely, "registration in accordance with rules adopted pursuant to this chapter."

(ei) "Regulations of the U.S. Department of Transportation" means the regulations in 49 CFR 100-189.

(ej) "Rem" means the special unit of any of the quantities expressed as dose equivalent equal to the absorbed dose in rad multiplied by the quality factor.

(ek) "Research and development" means:

(el) "Residual radioactivity" means radioactivity in structures, materials, soils, groundwater, and other media at a site resulting from activities under the licensee's control, but not background radiation, and includes:

(em) "Respiratory protective device" means an apparatus, such as a respirator, used to reduce an individual's intake of airborne radioactive materials.

(en) "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 and radioactive materials exclusive of areas used as residential quarters, other than separate rooms in a residential building which may be set apart as a restricted area.

(eo) "Restricted use" means that a limit or control has been placed on future use of the facility and the facility is no longer under the control of the licensee, registrant, of holder of the record of possession.

(ep) "Roentgen" means the special unit of exposure where one roentgen (R) equals 2.58E-4 coulombs per kilogram of air.

(eq) "Sanitary sewerage" means a system of public sewers for carrying off waste water and refuse, but excluding sewage treatment facilities, septic tanks, and leach fields owned or operated by the licensee or registrant.

(er) "Sealed source" means radioactive material that is permanently bonded or fixed in a capsule or matrix designed to prevent release and dispersal of the radioactive material under the most severe conditions which are likely to be encountered in normal use and handling.

(es) "Sealed source and device registry (SSD) " means the national registry that contains the registration certificates, maintained by the Nuclear Regulatory Commission (NRC), that summarize the radiation safety information for sealed sources and devices, and describe the licensing and use conditions approved for the product.

(et) "Self-contained breathing apparatus (SCBA) " means an atmosphere-supplying respirator for which the breathing air source is designed to be carried by the user.

(eu) "Shallow dose equivalent (Hs) " means the dose equivalent at a tissue depth of 0.007 centimeter (7 mg/cm2) applicable to the external exposure of the skin of the whole body or the skin of an extremity.

(ev) "Short-lived radon daughters for radon-222" means polonium-218, lead-214, bismuth-214, and polonium-214.

(ew) "Short-lived radon daughters for radon-220" means polonium-216, lead-212, bismuth-212, and polonium-212.

(ex) "Sievert" means the SI unit of any of the quantities expressed as dose equivalent which in sieverts is equal to the absorbed dose in grays multiplied by the quality factor.

(ey) "Site" means the area contained within the boundary of a location under the control of persons generating or storing radioactive materials.

(ez) "Site boundary" means that line beyond which the land or property is not owned, leased, or otherwise controlled by the licensee or registrant.

(fa) Source material" means "source material" as defined in RSA 125-F:3, XIX, namely, "(a) uranium, thorium, or any other material which the governor declares by order to be source material after the United States Nuclear Regulatory Commission or its successor has determined the material to be source material; or (b) ores containing one or more of the foregoing materials in such concentration as the governor declares by order to be source material after the United States Nuclear Regulatory Commission or its successor has determined the material in such concentration to be source material."

(fb) "Source material milling" means any activity that results in the production of radioactive material as defined in He-P 4003.01(ea) .

(fc) "Source of radiation" means "source of radiation" as defined in RSA 125-F:3, XX, namely, "collectively, radioactive material and radiation equipment."

(fd) "Source traceability" means 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, or by a laboratory which participates in a continuing measurement quality assurance program with the National Institute of Standards and Technology or an equivalent national or international program.

(fe) "Special form radioactive material" means radioactive material that satisfies the following conditions:

(ff) "Special nuclear material" means "special nuclear material" as defined in RSA 125-F:3, XXI, namely, "(a) plutonium, uranium 233, uranium enriched in the isotope 233 or in the isotope 235, and any other material which the governor declares by order to be special nuclear material after the United States Nuclear Regulatory Commission or its successor has determined the material to be special nuclear material, but does not include source material; or (b) any material artificially enriched by any of the foregoing, but does not include source material."

(fg) "Special nuclear material in quantities not sufficient to form a critical mass" means:

(fh) "Stochastic effect" means a health effect that occurs 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, such as hereditary effects and cancer incidence.

(fi) "Storage" means a condition in which a device or source is not being used for an extended period of time, and has been made inoperable.

(fj) "Supplied-air respirator (SAR) " means an atmosphere-supplying respirator for which the source of breathing air is not designed to be carried by the user. This term includes "airline respirator."

(fk) "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 and measurements or calculations of levels of radiation, or concentrations or quantities of radioactive material present.

(fl) "Test" means the process of verifying compliance with an applicable rule.

(fm) "Tight-fitting facepiece" means a respiratory inlet covering that forms a complete seal with the face.

(fn) "Total effective dose equivalent (TEDE) " means the sum of the deep dose equivalent for external exposures and the committed effective dose equivalent for internal exposures.

(fo) "Total organ dose equivalent (TODE) " means the sum of the deep dose equivalent, as defined in He-P 4003.01(ar), and the committed dose equivalent, as defined in He-P 4003.01(af), and recorded for the maximally exposed organ.

(fp) "Traceable to a national standard" means:

(fq) "U.S. Department of Energy" means the Department of Energy established by Public Law 95-91, August 4, 1977, 91 Stat. 565, 42 U.S.C. 7101, to the extent that the Department 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 sections 104(b), (c) and (d) of the Energy Reorganization Act of 1974 established by Public Law 93-438, October 11, 1974, 88 Stat. 1233 at 1237, 42 U.S.C. 5814, effective January 19, 1975 and retransferred to the Secretary of Energy pursuant to section 301(a) of the Department of Energy Organization Act established by Public Law 95-91, August 4, 1977, 91 Stat. 565 at 577-578, 42 U.S.C. 7151, effective October 1, 1977.

(fr) "Unrefined and unprocessed ore" means ore in its natural form prior to any processing.

(fs) "Unrestricted area" means an area access to which is neither limited nor controlled by the licensee or registrant.

(ft) "Unrestricted use" means that the facility or area may be used by individuals for any purpose without limits or controls, and is no longer under the control of the licensee, registrant, or holder of the record of possession.

(fu) "User seal check (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.

(fv) "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 5 Gy (500 rad) in one hour at one meter from a source of radiation or one meter from any surface that the radiation penetrates.

(fw) "Waste" means "low-level radioactive waste" as defined in RSA 125-F:3, X, namely, "radioactive waste not classified as high-level radioactive waste, transuranic waste, spent nuclear fuel, or byproduct material as defined in paragraph II." This term includes radioactive waste not classified as byproduct material as defined in (v) above and includes radioactive wastes that are permissible for disposal in a land disposal facility.

(fx) "Waste handling licensees" mean persons licensed to receive and store radioactive wastes prior to disposal and/or persons licensed to dispose of radioactive waste.

(fy) "Week" means 7 consecutive days starting on Sunday.

(fz) "Weighting factor (WT) for an organ or tissue (T) " means 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.

(ga) "Whole body" means external exposure of head, trunk including male gonads, arms above the elbow, or legs above the knee.

(gb) "Worker" means an individual engaged in activities under a license or registration issued by the DHHS/RHS and controlled by a licensee or registrant, but does not include the licensee or registrant.

(gc) "Working level (WL) " means any combination of short-lived radon daughters in one liter of air that will result in the ultimate emission of 1.3E+5 MeV of potential alpha particle energy.

(gd) "Working level month (WLM) " means an exposure to one working level for 170 hours and calculated as 2,000 working hours per year divided by 12 months per year and is approximately equal to 170 hours per month.

(ge) "Year" means the period of time beginning in January used to determine compliance with the provisions of these rules.