{"data":{"id":"us/49-cfr-173.436","jurisdiction":"us","citation":"49 CFR 173.436","heading":"Exempt material activity concentrations and exempt consignment activity limits for radionuclides.","body":"The Table of Exempt material activity concentrations and exempt consignment activity limits for radionuclides is as follows:\nSymbol of radionuclide Element and atomic number Activity concentration for exempt material (Bq/g) Activity concentration for exempt material (Ci/g) Activity limit for exempt consignment (Bq) Activity limit for exempt consignment (Ci)\nAc-225 Actinium (89) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nAc-227 1.0 × 10−1 2.7 × 10−12 1.0 × 103 2.7 × 10−8\nAc-228 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nAg-105 Silver (47) 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nAg-108m (b) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nAg-110m 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nAg-111 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nAl-26 Aluminum (13) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nAm-241 Americium (95) 1.0 2.7 × 10−11 1.0 × 104 2.7 × 10−7\nAm-242m (b) 1.0 2.7 × 10−11 1.0 × 104 2.7 × 10−7\nAm-243 (b) 1.0 2.7 × 10−11 1.0 × 103 2.7 × 10−8\nAr-37 Argon (18) 1.0 × 106 2.7 × 10−5 1.0 × 108 2.7 × 10−3\nAr-39 1.0 × 107 2.7 × 10−4 1.0 × 104 2.7 × 10−7\nAr-41 1.0 × 102 2.7 × 10−9 1.0 × 109 2.7 × 10−2\nAs-72 Arsenic (33) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nAs-73 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nAs-74 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nAs-76 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nAs-77 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nAt-211 Astatine (85) 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nAu-193 Gold (79) 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nAu-194 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nAu-195 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nAu-198 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nAu-199 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nBa-131 Barium (56) 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nBa-133 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nBa-133m 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nBa-140 (b) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nBe-7 Beryllium (4) 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nBe-10 1.0 × 104 2.7 × 10−7 1.0 × 106 2.7 × 10−5\nBi-205 Bismuth (83) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nBi-206 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nBi-207 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nBi-210 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nBi-210m 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nBi-212 (b) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nBk-247 Berkelium (97) 1.0 2.7 × 10−11 1.0 × 104 2.7 × 10−7\nBk-249 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nBr-76 Bromine (35) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nBr-77 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nBr-82 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nC-11 Carbon (6) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nC-14 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nCa-41 Calcium (20) 1.0 × 105 2.7 × 10−6 1.0 × 107 2.7 × 10−4\nCa-45 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nCa-47 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nCd-109 Cadmium (48) 1.0 × 104 2.7 × 10−7 1.0 × 106 2.7 × 10−5\nCd-113m 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nCd-115 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nCd-115m 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nCe-139 Cerium (58) 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nCe-141 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nCe-143 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nCe-144 (b) 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nCf-248 Californium (98) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nCf-249 1.0 2.7 × 10−11 1.0 × 103 2.7 × 10−8\nCf-250 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nCf-251 1.0 2.7 × 10−11 1.0 × 103 2.7 × 10−8\nCf-252 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nCf-253 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nCf-254 1.0 2.7 × 10−11 1.0 × 103 2.7 × 10−8\nCl-36 Chlorine (17) 1.0 × 104 2.7 × 10−7 1.0 × 106 2.7 × 10−5\nCl-38 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nCm-240 Curium (96) 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nCm-241 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nCm-242 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nCm-243 1.0 2.7 × 10−11 1.0 × 104 2.7 × 10−7\nCm-244 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nCm-245 1.0 2.7 × 10−11 1.0 × 103 2.7 × 10−8\nCm-246 1.0 2.7 × 10−11 1.0 × 103 2.7 × 10−8\nCm-247 1.0 2.7 × 10−11 1.0 × 104 2.7 × 10−7\nCm-248 1.0 2.7 × 10−11 1.0 × 103 2.7 × 10−8\nCo-55 Cobalt (27) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nCo-56 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nCo-57 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nCo-58 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nCo-58m 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nCo-60 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nCr-51 Chromium (24) 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nCs-129 Cesium (55) 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nCs-131 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nCs-132 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nCs-134 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nCs-134m 1.0 × 103 2.7 × 10−8 1.0 × 105 2.7 × 10−6\nCs-135 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nCs-136 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nCs-137 (b) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nCu-64 Copper (29) 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nCu-67 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nDy-159 Dysprosium (66) 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nDy-165 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nDy-166 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nEr-169 Erbium (68) 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nEr-171 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nEu-147 Europium (63) 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nEu-148 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nEu-149 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nEu-150 (short lived) 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nEu-150 (long lived) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nEu-152 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nEu-152m 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nEu-154 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nEu-155 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nEu-156 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nF-18 Fluorine (9) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nFe-52 Iron (26) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nFe-55 1.0 × 104 2.7 × 10−7 1.0 × 106 2.7 × 10−5\nFe-59 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nFe-60 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nGa-67 Gallium (31) 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nGa-68 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nGa-72 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nGd-146 Gadolinium (64) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nGd-148 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nGd-153 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nGd-159 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nGe-68 Germanium (32) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nGe-71 1.0 × 104 2.7 × 10−7 1.0 × 108 2.7 × 10−3\nGe-77 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nHf-172 Hafnium (72) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nHf-175 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nHf-181 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nHf-182 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nHg-194 Mercury (80) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nHg-195m 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nHg-197 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nHg-197m 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nHg-203 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nHo-166 Holmium (67) 1.0 × 103 2.7 × 10−8 1.0 × 105 2.7 × 10−6\nHo-166m 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nI-123 Iodine (53) 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nI-124 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nI-125 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nI-126 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nI-129 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nI-131 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nI-132 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nI-133 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nI-134 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nI-135 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nIn-111 Indium (49) 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nIn-113m 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nIn-114m 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nIn-115m 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nIr-189 Iridium (77) 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nIr-190 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nIr-192 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nIr-194 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nK-40 Potassium (19) 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nK-42 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nK-43 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nKr-79 Krypton (36) 1.0 × 10 3 2.7 × 10−8 1.0 × 10 5 2.7 × 10−6\nKr-81 Krypton (36) 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nKr-85 1.0 × 105 2.7 × 10−6 1.0 × 104 2.7 × 10−7\nKr-85m 1.0 × 103 2.7 × 10−8 1.0 × 1010 2.7 × 10−1\nKr-87 1.0 × 102 2.7 × 10−9 1.0 × 109 2.7 × 10−2\nLa-137 Lanthanum (57) 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nLa-140 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nLu-172 Lutetium (71) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nLu-173 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nLu-174 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nLu-174m 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nLu-177 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nMg-28 Magnesium (12) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nMn-52 Manganese (25) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nMn-53 1.0 × 104 2.7 × 10−7 1.0 × 109 2.7 × 10−2\nMn-54 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nMn-56 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nMo-93 Molybdenum (42) 1.0 × 103 2.7 × 10−8 1.0 × 108 2.7 × 10−3\nMo-99 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nN-13 Nitrogen (7) 1.0 × 102 2.7 × 10−9 1.0 × 109 2.7 × 10−2\nNa-22 Sodium (11) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nNa-24 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nNb-93m Niobium (41) 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nNb-94 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nNb-95 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nNb-97 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nNd-147 Neodymium (60) 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nNd-149 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nNi-59 Nickel (28) 1.0 × 104 2.7 × 10−7 1.0 × 108 2.7 × 10−3\nNi-63 1.0 × 105 2.7 × 10−6 1.0 × 108 2.7 × 10−3\nNi-65 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nNp-235 Neptunium (93) 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nNp-236 (short-lived) 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nNp-236 (long-lived) 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nNp-237 (b) 1.0 2.7 × 10−11 1.0 × 103 2.7 × 10−8\nNp-239 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nOs-185 Osmium (76) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nOs-191 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nOs-191m 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nOs-193 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nOs-194 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nP-32 Phosphorus (15) 1.0 × 103 2.7 × 10−8 1.0 × 105 2.7 × 10−6\nP-33 1.0 × 105 2.7 × 10−6 1.0 × 108 2.7 × 10−3\nPa-230 Protactinium (91) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nPa-231 1.0 2.7 × 10−11 1.0 × 103 2.7 × 10−8\nPa-233 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nPb-201 Lead (82) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nPb-202 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nPb-203 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nPb-205 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nPb-210 (b) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nPb-212 (b) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nPd-103 Palladium (46) 1.0 × 103 2.7 × 10−8 1.0 × 108 2.7 × 10−3\nPd-107 1.0 × 105 2.7 × 10−6 1.0 × 108 2.7 × 10−3\nPd-109 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nPm-143 Promethium (61) 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nPm-144 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nPm-145 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nPm-147 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nPm-148m 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nPm-149 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nPm-151 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nPo-210 Polonium (84) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nPr-142 Praseodymium (59) 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nPr-143 1.0 × 104 2.7 × 10−7 1.0 × 106 2.7 × 10−5\nPt-188 Platinum (78) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nPt-191 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nPt-193 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nPt-193m 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nPt-195m 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nPt-197 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nPt-197m 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nPu-236 Plutonium (94) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nPu-237 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nPu-238 1.0 2.7 × 10−11 1.0 × 104 2.7 × 10−7\nPu-239 1.0 2.7 × 10−11 1.0 × 104 2.7 × 10−7\nPu-240 1.0 2.7 × 10−11 1.0 × 103 2.7 × 10−8\nPu-241 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nPu-242 1.0 2.7 × 10−11 1.0 × 104 2.7 × 10−7\nPu-244 1.0 2.7 × 10−11 1.0 × 104 2.7 × 10−7\nRa-223 (b) Radium (88) 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nRa-224 (b) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nRa-225 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nRa-226 (b) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nRa-228 (b) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nRb-81 Rubidium (37) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nRb-83 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nRb-84 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nRb-86 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nRb-87 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nRb(nat) 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nRe-184 Rhenium (75) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nRe-184m 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nRe-186 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nRe-187 1.0 × 106 2.7 × 10−5 1.0 × 109 2.7 × 10−2\nRe-188 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nRe-189 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nRe(nat) 1.0 × 106 2.7 × 10−5 1.0 × 109 2.7 × 10−2\nRh-99 Rhodium (45) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nRh-101 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nRh-102 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nRh-102m 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nRh-103m 1.0 × 104 2.7 × 10−7 1.0 × 108 2.7 × 10−3\nRh-105 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nRn-222 (b) Radon (86) 1.0 × 101 2.7 × 10−10 1.0 × 108 2.7 × 10−3\nRu-97 Ruthenium (44) 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nRu-103 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nRu-105 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nRu-106 (b) 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nS-35 Sulphur (16) 1.0 × 105 2.7 × 10−6 1.0 × 108 2.7 × 10−3\nSb-122 Antimony (51) 1.0 × 102 2.7 × 10−9 1.0 × 104 2.7 × 10−7\nSb-124 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nSb-125 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nSb-126 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nSc-44 Scandium (21) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nSc-46 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nSc-47 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nSc-48 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nSe-75 Selenium (34) 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nSe-79 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nSi-31 Silicon (14) 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nSi-32 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nSm-145 Samarium (62) 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nSm-147 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nSm-151 1.0 × 104 2.7 × 10−7 1.0 × 108 2.7 × 10−3\nSm-153 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nSn-113 Tin (50) 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nSn-117m 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nSn-119m 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nSn-121m 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nSn-123 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nSn-125 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nSn-126 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nSr-82 Strontium (38) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nSr-85 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nSr-85m 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nSr-87m 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nSr-89 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nSr-90 (b) 1.0 × 102 2.7 × 10−9 1.0 × 104 2.7 × 10−7\nSr-91 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nSr-92 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nT(H-3) Tritium (1) 1.0 × 106 2.7 × 10−5 1.0 × 109 2.7 × 10−2\nTa-178 (long-lived) Tantalum (73) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nTa-179 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nTa-182 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nTb-157 Terbium (65) 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nTb-158 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nTb-160 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nTc-95m Technetium (43) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nTc-96 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nTc-96m 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nTc-97 1.0 × 103 2.7 × 10−8 1.0 × 108 2.7 × 10−3\nTc-97m 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nTc-98 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nTc-99 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nTc-99m 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nTe-121 Tellurium (52) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nTe-121m 1.0 × 10 2 2.7 × 10−9 1.0 × 10 6 2.7 × 10−5\nTe-123m 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nTe-125m 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nTe-127 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nTe-127m 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nTe-129 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nTe-129m 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nTe-131m 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nTe-132 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nTh-227 Thorium (90) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nTh-228 (b) 1.0 2.7 × 10−11 1.0 × 104 2.7 × 10−7\nTh-229 (b) 1.0 2.7 × 10−11 1.0 × 103 2.7 × 10−8\nTh-230 1.0 2.7 × 10−11 1.0 × 104 2.7 × 10−7\nTh-231 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nTh-232 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nTh-234 (b) 1.0 × 103 2.7 × 10−8 1.0 × 105 2.7 × 10−6\nTh (nat) (b) 1.0 2.7 × 10−11 1.0 × 103 2.7 × 10−8\nTi-44 Titanium (22) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nTl-200 Thallium (81) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nTl-201 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nTl-202 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nTl-204 1.0 × 104 2.7 × 10−7 1.0 × 104 2.7 × 10−7\nTm-167 Thulium (69) 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nTm-170 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nTm-171 1.0 × 104 2.7 × 10−7 1.0 × 108 2.7 × 10−3\nU-230 (fast lung absorption) (b),(d) Uranium (92) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nU-230 (medium lung absorption) (e) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nU-230 (slow lung absorption) (f) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nU-232 (fast lung absorption) (b),(d) 1.0 2.7 × 10−11 1.0 × 103 2.7 × 10−8\nU-232 (medium lung absorption) (e) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nU-232 (slow lung absorption) (f) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nU-233 (fast lung absorption) (d) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nU-233 (medium lung absorption) (e) 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nU-233 (slow lung absorption) (f) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nU-234 (fast lung absorption) (d) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nU-234 (medium lung absorption) (e) 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nU-234 (slow lung absorption) (f) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nU-235 (all lung absorption types) (b),(d),(e),(f) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nU-236 (fast lung absorption) (d) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nU-236 (medium lung absorption) (e) 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nU-236 (slow lung absorption) (f) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nU-238 (all lung absorption types) (b),(d),(e),(f) 1.0 × 101 2.7 × 10−10 1.0 × 104 2.7 × 10−7\nU (nat) (b) 1.0 2.7 × 10−11 1.0 × 103 2.7 × 10−8\nU (enriched to 20% or less)(g) 1.0 2.7 × 10−11 1.0 × 103 2.7 × 10−8\nU (dep) 1.0 2.7 × 10−11 1.0 × 103 2.7 × 10−8\nV-48 Vanadium (23) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\nV-49 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nW-178 Tungsten (74) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nW-181 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nW-185 1.0 × 104 2.7 × 10−7 1.0 × 107 2.7 × 10−4\nW-187 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nW-188 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nXe-122 Xenon (54) 1.0 × 102 2.7 × 10−9 1.0 × 109 2.7 × 10−2\nXe-123 1.0 × 102 2.7 × 10−9 1.0 × 109 2.7 × 10−2\nXe-127 1.0 × 103 2.7 × 10−8 1.0 × 105 2.7 × 10−6\nXe-131m 1.0 × 104 2.7 × 10−7 1.0 × 104 2.7 × 10−7\nXe-133 1.0 × 103 2.7 × 10−8 1.0 × 104 2.7 × 10−7\nXe-135 1.0 × 103 2.7 × 10−8 1.0 × 1010 2.7 × 10−1\nY-87 Yttrium (39) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nY-88 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nY-90 1.0 × 103 2.7 × 10−8 1.0 × 105 2.7 × 10−6\nY-91 1.0 × 103 2.7 × 10−8 1.0 × 106 2.7 × 10−5\nY-91m 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nY-92 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nY-93 1.0 × 102 2.7 × 10−9 1.0 × 105 2.7 × 10−6\nYb-169 Ytterbium (70) 1.0 × 102 2.7 × 10−9 1.0 × 107 2.7 × 10−4\nYb-175 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nZn-65 Zinc (30) 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nZn-69 1.0 × 104 2.7 × 10−7 1.0 × 106 2.7 × 10−5\nZn-69m 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nZr-88 Zirconium (40) 1.0 × 102 2.7 × 10−9 1.0 × 106 2.7 × 10−5\nZr-93 (b) 1.0 × 103 2.7 × 10−8 1.0 × 107 2.7 × 10−4\nZr-95 1.0 × 101 2.7 × 10−10 1.0 × 106 2.7 × 10−5\nZr-97 (b) 1.0 × 101 2.7 × 10−10 1.0 × 105 2.7 × 10−6\na [Reserved]\nb Parent nuclides and their progeny included in secular equilibrium are listed as follows:\nSr-90 Y-90\nZr-93 Nb-93m\nZr-97 Nb-97\nRu-106 Rh-106\nAg-108m Ag-108\nCs-137 Ba-137m\nCe-144 Pr-144\nBa-140 La-140\nBi-212 Tl-208 (0.36), Po-212 (0.64)\nPb-210 Bi-210, Po-210\nPb-212 Bi-212, Tl-208 (0.36), Po-212 (0.64)\nRn-222 Po-218, Pb-214, Bi-214, Po-214\nRa-223 Rn-219, Po-215, Pb-211, Bi-211, Tl-207\nRa-224 Rn-220, Po-216, Pb-212, Bi-212, Tl-208 (0.36), Po-212 (0.64),\nRa-226 Rn-222, Po-218, Pb-214, Bi-214, Po-214, Pb-210, Bi-210, Po-210\nRa-228 Ac-228\nTh-228 Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208 (0.36), Po-212 (0.64)\nTh-229 Ra-225, Ac-225, Fr-221, At-217, Bi-213, Po-213, Pb-209\nTh-nat Ra-228, Ac-228, Th-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208 (0.36), Po-212 (0.64)\nTh-234 Pa-234m\nU-230 Th-226, Ra-222, Rn-218, Po-214\nU-232 Th-228, Ra-224, Rn-220, Po-216, Pb-212, Bi-212, Tl-208 (0.36), Po-212 (0.64)\nU-235 Th-231\nU-238 Th-234, Pa-234m\nU-nat Th-234, Pa-234m, U-234, Th-230, Ra-226, Rn-222, Po-218, Pb-214, Bi-214, Po-214, Pb-210, Bi-210, Po-210\nNp-237 Pa-233\nAm-242m Am-242\nAm-243 Np-239\nc [Reserved]\nd These values apply only to compounds of uranium that take the chemical form of UF6, UO2 F2 and UO2 (NO3)2 in both normal and accident conditions of transport.\ne These values apply only to compounds of uranium that take the chemical form of UO3, UF4, UCl4 and hexavalent compounds in both normal and accident conditions of transport.\nf These values apply to all compounds of uranium other than those specified in notes (d) and (e) of this table.\ng These values apply to unirradiated uranium only.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—HAZARDOUS MATERIALS REGULATIONS","PART 173—SHIPPERS—GENERAL REQUIREMENTS FOR SHIPMENTS AND PACKAGINGS","Subpart I—Class 7 (Radioactive) Materials"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"aa5114f20c87bc1cf2622e8451d1e3f0917d07a07844287f73e9f5e79e09f324","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-173.435","next":"us/49-cfr-173.441"},"notice":"GroundRules: Original legal text. Not legal advice."}