D.C. Mun. Regs. tit. 22, r. 22-B6799
When used in chapters 67 through 69 of this title, and in forms prescribed under those chapters, where not otherwise distinctly expressed or manifestly incompatible with the intent of the District of Columbia Low-Level Radioactive Generator Policy Act of 1990, effective March 7, 1991, as amended (D.C. Law 8-226; D.C. Official Code § 8-1501 to 8-1506 (2001)) (Act) or those chapters, the following terms shall have the meanings ascribed:
Agreement state - any state with which the Nuclear Regulatory Commission or the Atomic Energy Commission has entered into an effective agreement under subsection 274 b. of the Atomic Energy Act of 1954, as amended (73 Stat. 689).
Airborne radioactive material - any radioactive material dispersed in the air in the form of dust, fumes, mists, vapors, or gases.
Byproduct material - 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.
Calendar quarter - not less than twelve (12) consecutive weeks, nor more than fourteen (14) consecutive weeks. Calendar quarters shall be arranged so that no day in any year is omitted from inclusion within a calendar quarter. No licensee or registrant shall change the method observed by him or her of determining calendar quarters for purposes of this chapter, except at the beginning of a calendar year.
C.F.R. - Code of Federal Regulations.
Department - the Department of Health or a successor agency.
Director - the Director of the Department of Health or a successor agency or her or his designee.
District - the District of Columbia.
Health physicist - a safety professional in the field of radiation protection who uses his or her knowledge of the physical and biological effects of radiation in order to ensure the safety of both users of radioactive sources and of the general public.
Human use - the internal or external administration of radiation or radioactive material to human beings.
Individual - any human being.
License - except where otherwise specified, a license issued pursuant to 22 DCMR § 6800.
Occupational exposure - exposure of an individual to radiation in a restricted area or in the course of employment in which the individual's restricted area or in the course of employment in which the individual's duties involve exposure to radiation, except that "occupational exposure" shall not be deemed to include any exposure of an individual to radiation for the purpose of medical diagnosis or medical therapy of the individual.
Person - any individual, corporation, partnership, firm, association, trust, estate, public or private institution, group, agency, political subdivision or agency state. This term shall not include the United States Atomic Energy Commission or any other federal agency.
Pharmacist - an individual licensed by the District of Columbia to compound and dispense drugs, prescriptions, and poisons.
Physician - an individual licensed by the District of Columbia to dispense drugs in the practice of medicine.
Radiation - gamma rays and X-rays, alpha and beta particles, high-speed electrons, neutrons, and other nuclear particles; but not sound or radio waves, lasers, or visible, infrared, or ultra-violet light.
Radioactive material - any material, solid, liquid, or gas that emits radiation spontaneously.
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.
Restricted area - any area to which access is controlled by the licensee or registrant for purposes of protection of individuals from exposure to radiation or radioactive materials. A "restricted area" shall not include any areas used for residential quarters, although a separate room or rooms in the residential building may be set apart as a restricted area.
Sealed source - 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 that are likely to be encountered in normal use and handling.
Source material - uranium or thorium, or any combination of these two materials, in any physical or chemical form; or ores that contain by weight one-twentieth of one percent (0.05%) or more of uranium, thorium, or any combination of uranium and thorium. "Source material" does not include special nuclear material.
Source of radiation - any radioactive material, or any device or equipment, emitting or capable of producing radiation.
Special nuclear material in quantities not sufficient to form a critical mass - uranium enriched in the isotope U-235 in quantities not exceeding three hundred fifty (350) grams of contained U-235; uranium 233 in quantities not exceeding two hundred (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". For example, the following quantities in combination would not exceed the limitation and are within the formula:
175 (grams contained U-235) + 50 (grams U-233) + 50 (grams Pu) = 1/
350 200 200
State - any one of the states and the District of Columbia.
Unrefined and unprocessed ore - ore in its natural form prior to any processing, such as grinding, roasting, beneficiating, or refining.
Unrestricted area - any area to which access is not controlled by the licensee or registrant in order to protect individuals from exposure to radiation and radioactive materials; and any area used for residential quarters.
D.C. Mun. Regs. tit. 22, r. 22-B6799