Code of Maine Rules
10 - DEPARTMENT OF HEALTH AND HUMAN SERVICES
144 - DEPARTMENT OF HEALTH AND HUMAN SERVICES - GENERAL
Chapter 220 - Rules Relating to Radiation Protection
Part C - LICENSING OF RADIOACTIVE MATERIAL
Schedule B - EXEMPT QUANTITIES OF INDIVIDUAL RADIOACTIVE MATERIALS (C.3.B)

Universal Citation: 10 ME Code Rules ยง B
Current through 2024-38, September 18, 2024

Radioactive Material

MicroCuries

Radioactive Material

MicroCuries

Antimony-122 (Sb 122)

100

Gallium-67 (Ga 67)

100

Antimony-124 (Sb 124)

10

Gallium-72 (Ga 72)

10

Antimony-125 (Sb 125)

10

Germanium-68 (Ge 68)

10

Arsenic-73 (As 73)

100

Germanium-71 (Ge 71)

100

Arsenic-74 (As 74)

10

Gold-195 (Au 195)

10

Arsenic-76 (As 76)

10

Gold-198 (Au 198)

100

Arsenic-77 (As 77)

100

Gold-199 (Au 199)

100

Barium-131(Ba 131)

10

Hafnium-181 (Hf 181)

10

Barium-133 (Ba 133)

10

Holmium-166 (Ho 166)

100

Barium-140 (Ba 140)

10

Hydrogen-3 (H 3)

1,000

Bismuth-210 (Bi 210)

1

Indium-111 (In 111)

100

Bromine-82 (Br 82)

10

Indium-113m (In 113m)

100

Cadmium-109 (Cd 109)

10

Indium-114m (In 114m)

10

Cadmium-115m Cd 115m)

10

Indium-115m (In 115m)

100

Cadmium-115 (Cd 115)

100

Indium-115 (In 115)

10

Calcium-45 (Ca 45)

10

Iodine-123 (I 123)

100

Calcium-47 (Ca 47)

10

Iodine-125 (I 125)

1

Carbon-14 (C 14)

100

Iodine-126 (I 126)

1

Cerium-141 (Ce 141)

100

Iodine-129 (I 129)

0.1

Cerium-143 (Ce 143)

100

Iodine-131 (I 131)

1

Cerium-144 (Ce 144)

1

Iodine-132 (I 132)

10

Cesium-129 (Cs 129)

100

Iodine-133 (I 133)

1

Cesium-131 (Cs 131)

1,000

Iodine-134 (I 134)

10

Cesium-134m (Cs 134m)

100

Iodine-135 (I 135)

10

Cesium-134 (Cs 134)

1

Iridium-192 (Ir 192)

10

Cesium-135 (Cs 135)

10

Iridium-194 (Ir 194)

100

Cesium-136 (Cs 136)

10

Iron-52 (Fe 52)

10

Cesium-137 (Cs 137)

10

Iron-55 (Fe 55)

100

Chlorine-36 (Cl 36)

10

Iron-59 (Fe 59)

10

Chlorine-38 (Cl 38)

10

Krypton-85 (Kr 85)

100

Chromium-51 (Cr 51)

1,000

Krypton-87 (Kr 87)

10

Cobalt-57 (Co 57)

100

Lanthanum-140 (La 140)

10

Cobalt-58m (Co 58m)

10

Lutetium-177 (Lu 177)

100

Cobalt-58 (Co 58)

10

Manganese-52 (Mn 52)

10

Cobalt-60 (Co 60)

1

Manganese-54 (Mn 54)

10

Copper-64 (Cu 64)

100

Manganese-56 (Mn 56)

10

Dysprosium-165 (Dy 165)

10

Mercury-197m (Hg 197m)

100

Dysprosium-166 (Dy 166)

100

Mercury-197 (Hg 197)

100

Erbium-169 (Er 169)

100

Mercury-203 (Hg 203)

10

Erbium-171 (Er 171)

100

Molybdenum-99 (Mo 99)

100

Europium-152(Eu152)9.2h

100

Neodymium-147 (Nd 147)

100

Europium-152(Eu152)13yr

1

Neodymium-149 (Nd 149)

100

Europium-154 (Eu 154)

1

Nickel-59 (Ni 59)

100

Europium-155 (Eu 155)

10

Nickel-63 (Ni 63)

10

Fluorine-18 (F 18)

1,000

Nickel-65 (Ni 65)

100

Gadolinium-153 (Gd 153)

10

Niobium-93m (Nb 93m)

10

Gadolinium-159 (Gd 159)

100

Niobium-95 (Nb 95)

10

Niobium-97 (Nb 97)

10

Strontium 92 (Sr 92)

10

Osmium-185 (Os 185)

10

Sulphur-35 (S 35)

100

Osmium-191m (Os 191m)

100

Tantalum-182 (Ta 182)

10

Osmium-191 (Os 191)

100

Technetium-96 (Tc 96)

10

Osmium-193 (Os 193)

100

Technetium-97m (Tc 97m)

100

Palladium-103 (Pd 103)

100

Technetium-97 (Tc 97)

100

Palladium-109 (Pd 109)

100

Technetium-99m (Tc 99m)

100

Phosphorus-32 (P 32)

10

Technetium-99 (Tc 99)

10

Platinum-191 (Pt 191)

100

Tellurium-125m (Te 125m)

10

Platinum-193m (Pt 193m)

100

Tellurium-127m (Te 127m)

10

Platinum-193 (Pt 193)

100

Tellurium-127 (Te 127)

100

Platinum-197m (Pt 197m)

100

Tellurium-129m (Te 129m)

10

Platinum-197 (Pt 197)

100

Tellurium-129 (Te 129)

100

Polonium-210 (Po 210)

0.1

Tellurium-131m (Te 131m)

10

Potassium-42 (K 42)

10

Tellurium-132 (Te 132)

10

Potassium-43 (K 43)

10

Terbium-160 (Tb 160)

10

Praseodymium-142(Pr142)

100

Thallium-200 (Tl 200)

100

Praseodymium-143(Pr143)

100

Thallium-201 (Tl 201)

100

Promethium-147 (Pm 147)

10

Thallium-202 (Tl 202)

100

Promethium-149 (Pm 149)

10

Thallium-204 (Tl 204)

10

Rhenium-186 (Re 186)

100

Thulium-170 (Tm 170)

10

Rhenium-188 (Re 188)

100

Thulium-171 (Tm 171)

10

Rhodium-103m (Rh 103m)

100

Tin-113 (Sn 113)

10

Rhodium-105 (Rh 105)

100

Tin-125 (Sn 125)

10

Rubidium-81 (Rb 81)

10

Tungsten-181 (W 181)

10

Rubidium-86 (Rb 86)

10

Tungsten-185 (W 185)

10

Rubidium-87 (Rb 87)

10

Tungsten-187 (W 187)

100

Ruthenium-97 (Ru 97)

100

Vanadium-48 (V 48)

10

Ruthenium-103 (Ru 103)

10

Xenon-131m (Xe 131m)

1,000

Ruthenium-105 (Ru 105)

10

Xenon-133 (Xe 133)

100

Ruthenium-106 (Ru 106)

1

Xenon-135 (Xe 135)

100

Samarium-151 (Sm 151)

10

Ytterbium-175 (Yb 175)

100

Samarium-153 (Sm 153)

100

Yttrium-87 (Y 87)

10

Scandium-46 (Sc 46)

10

Yttrium-88 (Y 88)

10

Scandium-47 (Sc 47)

100

Yttrium-90 (Y 90)

10

Scandium-48 (Sc 48)

10

Yttrium-91 (Y 91)

10

Selenium-75 (Se 75)

10

Yttrium-92 (Y 92)

100

Silicon-31 (Si 31)

100

Yttrium-93 (Y 93)

100

Silver-105 (Ag 105)

10

Zinc-65 (Zn 65)

10

Silver-110m (Ag 110m)

1

Zinc-69m (Zn 69m)

100

Silver-111 (Ag 111)

100

Zinc-69 (Zn 69)

1,000

Sodium-22 (Na 22)

10

Zirconium-93 (Zr 93)

10

Sodium-24 (Na 24)

10

Zirconium-95 (Zr 95)

10

Strontium-85 (Sr 85)

10

Zirconium-97 (Zr 97)

10

Strontium-89 (Sr 89)

1

Any radioactive material not listed above other than alpha emitting radioactive material

0.1

Strontium 90 (Sr 90)

0.1

Strontium 91 (Sr 91)

10

NOTE: To convert microcuries (µCi) to SI units of kilobecquerels (kBq), multiply the above by 37.

Disclaimer: These regulations may not be the most recent version. Maine 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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