4 . . Lo @ redio”S21 Safety Brul-tions '° d CJTF S:vEN No. 3-53 eo e e personnel of ships and boats are ‘not over-exposed to radiation and that ships and boats are not contaminated excessively, The criterion in both cases is thet no personnel will be over-exposed as defined by paragraph 3a above, except in emergencies or tactical operations, and that after the operational period no personnel will receive more than 0,3 roentgen per week from contaminated equipment, (4) For ships and boats operating in contaminated woters, recsonable allowances will be made to differentiate between the relative contribue tion to the total flux from fixed contamination and that due to "Shine" from contaminated waters, Fixed alpha contamination should not exceed 2500 23 (mameGerminute) per 150 enof area for enclosed areas (cabins, etc.) and S0MEnEper 150 em® area for open surfaces where ventilation is good, (5) At the conclusion of the operation, final clearances will be granted by Task Group Comenders, or by Commanding Officers if so ordered, to those ships and boats showing no point of contamination greater than 15 mr/dey (beta end garme) and no detectable alpha, Other ships and boats will be granted operational clearances by Task Group Commanders, or by Commanding Officers if so ordersd, 4n operational clearance implies that contaminetion exists and-that special procedures as necessary are instis tuted aboard ship, : ; | (6) Individuals on board ships of the task force shall be protected collectively from hazards of blest, heat and radioactivity by movenent and positioning of the ships. (7) No ships with personnel shall be permitted inside the 1.5 p.s.i, line wiless specifically directed otherwise. ": Bearings of danger fron immediate radioactive fall-out for ship operations will be established by CJTF SEVEN on the basis of forecast wind directions at the intended a time of detonation, radex, This danger section will be designated as surfsec All ships of the task force shcll bc required to remain outside the