“Le Their duty would be to collect and interpret technical information on rate and intensity of radiation necessary to prevent overexposure of personnel whose civil defense duties require their entry into radiologically hazardous areas, Radiological Defense Pechnical Service Units should always accompany, or precede, the police, firefighting, rescue and other oper:tional groups to which assigned into any and all areas where there is reason to believe that ionizing radiations may be encountered, On the basis of the radiation rate and intensity data secured, the radiological defense personnel would advise the leaders of those units concerning the maximum period of time which workers may remain in specific radiologically hazardous areas without likelihood of injury, Withdrawals and replacements made in accordance with the advice furnished should provide vrotection from radiation injuries for all persons engaged in posteattack civil defense operations, Radiological Defense Technical Service Units assigned to firefighting groups are likely to be among the first, if not the very first, radiological defense units to detect the presence of ionizing radiations in bombed areas, Therefore they report their initial detections to the Radfological Situation Plotting Center in the operational headquarters of the local Civil Defense Director via established channels of communication, All sienificant data must, of course, be incorporated in the plot. THE RADICLOGICAL DEFENSE ORGANIZATION 4 Generol Organization Requirements, Effective radiological defense on a Nationwide scale necessitates not only immediate establishment of a separate Radiological Defense Division in the Office of Civil Defense, but also immediate TOS ARCHIVaS