[Code of Federal Regulations]

[Title 40, Volume 24]

[Revised as of July 1, 2006]

From the U.S. Government Printing Office via GPO Access

[CITE: 40CFR190.02]



[Page 5-6]

 

                   TITLE 40--PROTECTION OF ENVIRONMENT

 

         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)

 

PART 190_ENVIRONMENTAL RADIATION PROTECTION STANDARDS FOR NUCLEAR POWER 

OPERATIONS--Table of Contents

 

                      Subpart A_General Provisions

 

Sec.  190.02  Definitions.



    (a) Nuclear fuel cycle means the operations defined to be associated 

with the production of electrical power for public use by any fuel cycle 

through utilization of nuclear energy.

    (b) Uranium fuel cycle means the operations of milling of uranium 

ore, chemical conversion of uranium, isotopic enrichment of uranium, 

fabrication of uranium fuel, generation of electricity by a light-water-

cooled nuclear power plant using uranium fuel, and reprocessing of spent 

uranium fuel, to the extent that these directly support the production 

of electrical power for public use utilizing nuclear energy, but 

excludes mining operations, operations at waste disposal sites, 

transporta tion of any radioactive material in sup port of these 

operations, and the reuse of recovered non-uranium special nu clear and 

by-product materials from the cycle.

    (c) General environment means the total terrestrial, atmospheric and 

aquatic environments outside sites upon which any operation which is 

part of a nuclear fuel cycle is conducted.

    (d) Site means the area contained within the boundary of a location 

under the control of persons possessing or using radioactive material on 

which is conducted one or more operations covered by this part.

    (e) Radiation means any or all of the following: Alpha, beta, gamma, 

or X-rays; neutrons; and high-energy electrons, protons, or other atomic 

particles; but not sound or radio waves, nor visible, infrared, or ultra 

violet light.

    (f) Radioactive material means any material which spontaneously 

emits radiation.

    (g) Curie (Ci) means that quantity of radioactive material producing 

37 billion nuclear transformations per second. (One millicurie 

(mCi)=0.001 Ci.)

    (h) Dose equivalent means the product of absorbed dose and 

appropriate factors to account for differences in biological 

effectiveness due to the quality of radiation and its spatial 

distribution in the body. The unit of dose equivalent is the ``rem.'' 

(One millirem (mrem)= 0.001 rem.)

    (i) Organ means any human organ exclusive of the dermis, the 

epidermis, or the cornea.

    (j) Gigawatt-year refers to the quantity of electrical energy 

produced at the busbar of a generating station. A gigawatt is equal to 

one billion watts. A gigawatt-year is equivalent to the amount of energy 

output represented by an average electric power level of one gigawatt 

sustained for one year.

    (k) Member of the public means any individual that can receive a 

radiation dose in the general environment, whether he may or may not 

also be exposed to radiation in an occupation associated with a nuclear 

fuel cycle. However, an individual is not considered a member of the 

public during any



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period in which he is engaged in carrying out any operation which is 

part of a nuclear fuel cycle.

    (l) Regulatory agency means the government agency responsible for 

issuing regulations governing the use of sources of radiation or 

radioactive materials or emissions therefrom and carrying out inspection 

and enforcement activities to assure compliance with such regulations.