{"data":{"id":"us/10-cfr-33.100","jurisdiction":"us","citation":"10 CFR 33.100","heading":"Schedule A.","body":"Byproduct material Col. I curies Col. II curies\nAntimony-122 1 0.01\nAntimony-124 1 .01\nAntimony-125 1 .01\nArsenic-73 10 .1\nArsenic-74 1 .01\nArsenic-76 1 .01\nArsenic-77 10 .1\nBarium-131 10 .1\nBarium-140 1 .01\nBeryllium-7 10 0.1\nBismuth-210 .1 .001\nBromine-82 10 .1\nCadmium-109 1 .01\nCadmium-115m 1 .01\nCadmium-115 10 .1\nCalcium-45 1 .01\nCalcium-47 10 .1\nCarbon-14 100 1.\nCerium-141 10 .1\nCerium-143 10 .1\nCerium-144 .1 .001\nCesium-131 100 1.\nCesium-134m 100 1.\nCesium-134 .1 .001\nCesium-135 1 .01\nCesium-136 10 .1\nCesium-137 .1 .001\nChlorine-36 1 .01\nChlorine-38 100 1.\nChromium-51 100 1.\nCobalt-57 10 0.1\nCobalt-58m 100 1.\nCobalt-58 1 .01\nCobalt-60 .1 .001\nCopper-64 10 .1\nDysprosium-165 100 1.\nDysprosium-166 10 .1\nErbium-169 10 .1\nErbium-171 10 .1\nEuropium-152 9.2 h 10 .1\nEuropium-152 13 y .1 .001\nEuropium-154 .1 .001\nEuropium-155 1 .01\nFluorine-18 100 1.\nGadolinium-153 1 .01\nGadolinium-159 10 .1\nGallium-72 10 .1\nGermanium-71 100 1\nGold-198 10 .1\nGold-199 10 .1\nHafnium-181 1 .01\nHolmium-166 10 .1\nHydrogen-3 100 1\nIndium-113m 100 1\nIndium-114m 1 .01\nIndium-115m 100 1\nIndium-115 1 .01\nIodine-125 .1 .001\nIodine-126 .1 .001\nIodine-129 .1 .01\nIodine-131 .1 .001\nIodine-132 10 .1\nIodine-133 1 .01\nIodine-134 10 .1\nIodine-135 1 .01\nIridium-192 1 .01\nIridium-194 10 .1\nIron-55 10 .1\nIron-59 1 .01\nKrypton-85 100 1\nKrypton-87 10 .1\nLanthanum-140 1 .01\nLutetium-177 10 .1\nManganese-52 1 .01\nManganese-54 1 .01\nManganese-56 10 .1\nMercury-197m 10 .1\nMercury-197 10 .1\nMercury-203 1 .01\nMolybdenum-99 10 .1\nNeodymium-147 10 .1\nNeodymium-149 10 .1\nNickel-59 10 .1\nNickel-63 1 .01\nNickel-65 10 .1\nNiobium-93m 1 .01\nNiobium-95 1 .01\nNiobium-97 100 1.\nOsmium-185 1 .01\nOsmium-191m 100 1.\nOsmium-191 10 .1\nOsmium-193 10 .1\nPalladium-103 10 .1\nPalladium-109 10 .1\nPhosphorus-32 1 .01\nPlatinum-191 10 .1\nPlatinum-193m 100 1.\nPlatinum-193 10 .1\nPlatinum-197m 100 1\nPlatinum-197 10 .1\nPolonium-210 .01 .0001\nPotassium-42 1 .01\nPraseodymium-142 10 .1\nPraseodymium-143 10 .1\nPromethium-147 1 .01\nPromethium-149 10 .1\nRadium-226 0.01 0.0001\nRhenium-186 10 .1\nRhenium-188 10 .1\nRhodium-103m 1,000 10.\nRhodium-105 10 .1\nRubidium-86 1 .01\nRubidium-87 1 .01\nRuthenium-97 100 1.\nRuthenium-103 1 .01\nRuthenium-105 10 .1\nRuthenium-106 .1 .001\nSamarium-151 1 .01\nSamarium-153 10 .1\nScandium-46 1 .01\nScandium-47 10 .1\nScandium-48 1 .01\nSelenium-75 1 .01\nSilicon-31 10 .1\nSilver-105 1 .01\nSilver-110m .1 .001\nSilver-111 10 .1\nSodium-22 0.1 0.001\nSodium-24 1 .01\nStrontium-85m 1,000 10.\nStrontium-85 1 .01\nStrontium-89 1 .01\nStrontium-90 .01 .0001\nStrontium-91 10 .1\nStrontium-92 10 .1\nSulphur-35 10 .1\nTantalum-182 1 .01\nTechnetium-96 10 .1\nTechnetium-97m 10 .1\nTechnetium-97 10 .1\nTechnetium-99m 100 1.\nTechnetium-99 1 .01\nTellurium-125m 1 .01\nTellurium-127m 1 .01\nTellurium-127 10 .1\nTellurium-129m 1 .01\nTellurium-129 100 1\nTellurium-131m 10 .1\nTellurium-132 1 .01\nTerbium-160 1 .01\nThallium-200 10 .1\nThallium-201 10 .1\nThallium-202 10 .1\nThallium-204 1 .01\nThulium-170 1 .01\nThulium-171 1 .01\nTin-113 1 .01\nTin-125 1 .01\nTungsten-181 1 .01\nTungsten-185 1 .01\nTungsten-187 10 .1\nVanadium-48 1 .01\nXenon-131m 1,000 10.\nXenon-133 100 1.\nXenon-135 100 1.\nYtterbium-175 10 .1\nYttrium-90 1 .01\nYttrium-91 1 .01\nYttrium-92 10 .1\nYttrium-93 1 .01\nZinc-65 1 .01\nZinc-69m 10 .1\nZinc-69 100 1.\nZirconium-93 1 .01\nZirconium-95 1 .01\nZirconium-97 1 .01\nAny byproduct material other than alpha emitting byproduct material not listed above .1 .001","path":["Title 10—Energy","CHAPTER I—NUCLEAR REGULATORY COMMISSION","PART 33—SPECIFIC DOMESTIC LICENSES OF BROAD SCOPE FOR BYPRODUCT MATERIAL"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-10.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:24:09Z","sha256":"1482361470432fc22020386e5c717389eb069de9f8c3a2899a0e11f7b682259a","source_id":"us-cfr","stale":true,"prev":"us/10-cfr-33.23","next":"us/10-cfr-34.1"},"notice":"GroundRules: Original legal text. Not legal advice."}