Glossary of Terms and Abbreviations for Use in Transportation Preparedness Planning, Volumes 27-974

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Department of Transportation, Office of the Secretary, 1974
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Page 220 - Commander may determine, from which any or all persons may be excluded, and with respect to which the right of any person to enter, remain in, or leave shall be subject to whatever restrictions the Secretary of War or the appropriate Military Commander may impose in his discretion.
Page 209 - The term dose is often used in the sense of the exposure dose, expressed in roentgens, which is a measure of the total amount of ionization that the quantity of radiation could produce in air. This...
Page 220 - Major disaster" means any flood, drought, fire, hurricane, earthquake, storm, or other catastrophe in any part of the United States which, in the determination of the President, is or threatens to be of sufficient severity and magnitude to warrant disaster assistance by the Federal Government...
Page 232 - Telecommunication. Any transmission, emission or reception of signs, signals, writing, images, and sounds or intelligence of any nature by wire, radio, optical or other electromagnetic systems.
Page 205 - ... emergency'). The existence of such emergency may be proclaimed by the President or by concurrent resolution of the Congress if the President in such proclamation, or the Congress in such resolution, finds that an attack upon the United States has occurred or is anticipated and that the national safety therefor requires an invocation of the provisions of this title.
Page 205 - In support of civil authorities during civil disturbances within the 50 States, District of Columbia, Commonwealth of Puerto Rico, US possessions and territories, or any political subdivision thereof.
Page 208 - The unnamed day on which a particular operation commences or is to commence. An operation may be the commencement of hostilities, a.
Page 203 - Decrease in intensity of a signal, beam, or wave as a result of absorption of energy and of scattering out of the path of a detector, but not including the reduction due to geometric spreading, ie, the inverse square of distance effect.
Page 223 - Neutron: A neutral particle (ie, with no electrical charge) of approximately unit mass, present in all atomic nuclei, except those of ordinary (light) hydrogen. Neutrons are required to initiate the fission process, and large numbers of neutrons are produced by both fission and fusion reactions in nuclear (or atomic) explosions.
Page 205 - Civil defense" is defined, for this purpose, in accordance with section 3(b) of the Federal Civil Defense Act of 1950. Pub. L. 920, 81st Congress as follows: The term "civil defense" means all those activities and measures designed or undertaken (1) to minimize the effects upon the civilian population caused or which would be caused by an attack upon the United States. (2...

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