Minnesota Administrative Rules
Agency 144 - Health Department
Chapter 4731 - RADIATION SAFETY
DOMESTIC LICENSING OF RADIOACTIVE MATERIALS
Part 4731.3150 - RADIOACTIVE MATERIALS; EMERGENCY PLAN QUANTITIES
Universal Citation: MN Rules 4731.3150
Current through Register Vol. 49, No. 13, September 23, 2024
This part specifies quantities of radioactive materials requiring consideration of the need for an emergency plan for responding to a release.
Radioactive material1 | Release fraction | Quantity (curies) |
Actinium-228 | 0.001 | 4,000 |
Americium-241 | 0.001 | 2 |
Americium-242 | 0.001 | 2 |
Americium-243 | 0.001 | 2 |
Antimony-124 | 0.01 | 4,000 |
Antimony-126 | 0.01 | 6,000 |
Barium-133 | 0.01 | 10,000 |
Barium-140 | 0.01 | 30,000 |
Bismuth-207 | 0.01 | 5,000 |
Bismuth-210 | 0.01 | 600 |
Cadmium-109 | 0.01 | 1,000 |
Cadmium-113 | 0.01 | 80 |
Calcium-45 | 0.01 | 20,000 |
Californium-252 | 0.001 | 9 (20 mg) |
Carbon-14 (noncarbon dioxide) | 0.01 | 50,000 |
Cerium-141 | 0.01 | 10,000 |
Cerium-144 | 0.01 | 300 |
Cesium-134 | 0.01 | 2,000 |
Cesium-137 | 0.01 | 3,000 |
Chlorine-36 | 0.5 | 100 |
Chromium-51 | 0.01 | 300,000 |
Cobalt-60 | 0.001 | 5,000 |
Copper-64 | 0.01 | 200,000 |
Curium-242 | 0.001 | 60 |
Curium-243 | 0.001 | 3 |
Curium-244 | 0.001 | 4 |
Curium-245 | 0.001 | 2 |
Europium-152 | 0.01 | 500 |
Europium-154 | 0.01 | 400 |
Europium-155 | 0.01 | 3,000 |
Germanium-68 | 0.01 | 2,000 |
Gadolinium-153 | 0.01 | 5,000 |
Gold-198 | 0.01 | 30,000 |
Hafnium-172 | 0.01 | 400 |
Hafnium-181 | 0.01 | 7,000 |
Holmium-166m | 0.01 | 100 |
Hydrogen-3 | 0.5 | 20,000 |
Iodine-125 | 0.5 | 1 |
Iodine-131 | 0.5 | 10 |
Indium-114m | 0.01 | 1,000 |
Iridium-192 | 0.001 | 40,000 |
Iron-55 | 0.01 | 40,000 |
Iron-59 | 0.01 | 7,000 |
Krypton-85 | 1.0 | 6,000,000 |
Lead-210 | 0.01 | 8 |
Manganese-56 | 0.01 | 60,000 |
Mercury-203 | 0.01 | 10,000 |
Molybdenum-99 | 0.01 | 30,000 |
Neptunium-237 | 0.001 | 2 |
Nickel-63 | 0.01 | 20,000 |
Niobium-94 | 0.01 | 300 |
Phosphorus-32 | 0.5 | 100 |
Phosphorus-33 | 0.5 | 1,000 |
Polonium-210 | 0.01 | 10 |
Potassium-42 | 0.01 | 9,000 |
Promethium-145 | 0.01 | 4,000 |
Promethium-147 | 0.01 | 4,000 |
Radium-226 | 0.001 | 100 |
Ruthenium-106 | 0.01 | 200 |
Samarium-151 | 0.01 | 4,000 |
Scandium-46 | 0.01 | 3,000 |
Selenium-75 | 0.01 | 10,000 |
Silver-110m | 0.01 | 1,000 |
Sodium-22 | 0.01 | 9,000 |
Sodium-24 | 0.01 | 10,000 |
Strontium-89 | 0.01 | 3,000 |
Strontium-90 | 0.01 | 90 |
Sulfur-35 | 0.5 | 900 |
Technetium-99 | 0.01 | 10,000 |
Technetium-99m | 0.01 | 400,000 |
Tellurium-127m | 0.01 | 5,000 |
Tellurium-129m | 0.01 | 5,000 |
Terbium-160 | 0.01 | 4,000 |
Thulium-170 | 0.01 | 4,000 |
Tin-113 | 0.01 | 10,000 |
Tin-123 | 0.01 | 3,000 |
Tin-126 | 0.01 | 1,000 |
Titanium-44 | 0.01 | 100 |
Vanadium-48 | 0.01 | 7,000 |
Xenon-133 | 1.0 | 900,000 |
Yttrium-91 | 0.01 | 2,000 |
Zinc-65 | 0.01 | 5,000 |
Zirconium-93 | 0.01 | 400 |
Zirconium-95 | 0.01 | 5,000 |
Any other beta-gamma emitter | 0.01 | 10,000 |
Mixed fission products | 0.01 | 1,000 |
Mixed corrosion products | 0.01 | 10,000 |
Contaminated equipment, beta-gamma | 0.001 | 10,000 |
Irradiated material, any form other than solid noncombustible | 0.01 | 1,000 |
Irradiated material, solid noncombustible | 0.001 | 10,000 |
Mixed radioactive waste, beta-gamma | 0.01 | 1,000 |
Packaged mixed waste, beta-gamma2 | 0.001 | 10,000 |
Any other alpha emitter | 0.001 | 2 |
Contaminated equipment, alpha | 0.0001 | 20 |
Packaged waste, alpha2 | 0.0001 | 20 |
Combinations of radioactive materials listed above1 |
1 For combinations of radioactive materials, consideration of the need for an emergency plan is required if the sum of the ratios of the quantity of each radioactive material authorized to the quantity listed for that material in this part exceeds one.
2 Waste packaged in Type B containers does not require an emergency plan.
Statutory Authority: MS s 144.1202; 144.1203
Disclaimer: These regulations may not be the most recent version. Minnesota may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
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