Figure: 30 TAC §336.1231(a)

Element* Radionuclide** Category
Actinium (89) Ac-227
Ac-228
I
I
Americium (95) Am-241
Am-243
I
I
Antimony (51) Sb-122
Sb-124
Sb-125
IV
III
III
Argon (18) Ar-37
Ar-41
Ar-41 (uncompressed)
VI
II
V
Arsenic (33) As-73
As-74
As-76
As-77
IV
IV
IV
IV
Astatine (85) Ar-211 III
Barium (56) Ba-131
Ba-133
Ba-140
IV
II
III
Berkelium (97) Bk-249 I
Beryllium (4) Be-7 IV
Bismuth (83) Bi-206
Bi-207
Bi-210
Bi-212
IV
III
II
III
Bromine (35) Br-82 IV
Cadmium (48) Cd-109
Cd-115m
Cd-115
IV
III
IV
Calcium (20) Ca-45
Ca-47
IV
IV
Californium (98) Cf-249
Cf-250
Cf-252
I
I
I
Carbon (6) C-14 IV
Cerium (58) Ce-141
Ce-143
Ce-144
IV
IV
III
Cesium (55) Cs-131
Cs-134m
Cs-134
Cs-135
Cs-136
Cs-137
IV
III
III
IV
IV
III
Chlorine (17) Cl-36
Cl-38
III
IV
Chromium (24) Cr-51 IV
Cobalt (27) Co-56
Co-57
Co-58m
Co-58
Co-60
III
IV
IV
IV
III
Copper (29) Cu-64 IV
Curium (96) Cm-242
Cm-243
Cm-244
Cm-245
Cm-246
I
I
I
I
I
Dysprosium (66) Dy-154
Dy-165
Dy-166
III
IV
IV
Erbium (68) Er-169
Er-171
IV
IV
Europium (63) Eu-150
Eu-152m
Eu-152
Eu-154
Eu-155
III
IV
III
II
IV
Florine (9) F-18 IV
Gadolinium (64) Gd-153
Gd-159
IV
IV
Galium (31) Ga-67
Ga-72
III
IV
Germanium (32) Ge-71 IV
Gold (79) Au-193
Au-194
Au-195
Au-196
Au-198
Au-199
III
III
III
IV
IV
IV
Hafnium (72) Hf-181 IV
Holmium (67) Ho-166 IV
Hydrogen (1) H-3 (see tritium)  
Indium (49) In-113m
In-114m
In-115m
In-115
IV
III
IV
IV
Iodine (53) I-124
I-125
I-126
I-129
I-131
I-132
I-133
I-134
I-135
III
III
III
III
III
IV
III
IV
IV
Iridium (77) Ir-190
Ir-192
Ir-194
IV
III
IV
Iron (26) Fe-55
Fe-59
IV
IV
Krypton (36) Kr-85m
Kr-85m (uncompresssed)
Kr-85
Kr-85 (uncompressed)
Kr-87
Kr-87 (uncompressed)
III
V
III
VI
II
V
Lanthanum (57) La-140 IV
Lead (82) Pb-203
Pb-210
Pb-212
IV
II
II
Lutetium (71) Lu-172
Lu-177
III
IV
Magnesium (12) Mg-28 III
Manganese (25) Mn-52
Mn-54
Mn-56
IV
IV
IV
Mercury (80) Hg-197m
Hg-197
Hg-203
IV
IV
IV
Mixed fission products
(MFP)
  II
Molybdenum (42) Mo-99 IV
Neodymium (60) Nd-147
Nd-149
IV
IV
Neptunium (93) Np-237
Np-239
I
I
Nickel (28) Ni-56
Ni-59
Ni-63
Ni-65
III
IV
IV
IV
Niobium (41) Nb-93m
Nb-95
Nb-97
IV
IV
IV
Osmium (76) Os-185
Os-191m
Os-191
Os-193
IV
IV
IV
IV
Palladium (46) Pd-103
Pd-109
IV
IV
Phosphorus (15) P-32 IV
Platinum (73) Pt-191
Pt-193
Pt-193m
Pt-197m
Pt-197
IV
IV
IV
IV
IV
Plutonium (94) Pu-238 F
Pu-239 F
Pu-240
Pu-241 F
Pu-242
I
I
I
I
I
Polonium (84) Po-210 I
Potassium (19) K-42
K-43
IV
III
Praseodymium (59) Pr-142
Pr-143
IV
IV
Promethium (61) Pm-147
Pm-149
IV
IV
Protactinium (91) Pa-230
Pa-231
Pa-233
I
I
II
Radium (88) Ra-223
Ra-224
Ra-226
Ra-228
II
II
I
I
Radon (86) Rn-220
Rn-222
IV
II
Rhenium (75) Re-183
Re-186
Re-187
Re-188
Re-Natural
IV
IV
IV
IV
IV
Rhodium (45) Rh-103m
Rh-105
IV
IV
Rubidium (37) Rb-86
Rb-87
Rb-Natural
IV
IV
IV
Ruthenium (44) Ru-97
Ru-103
Ru-105
Ru-106
IV
IV
IV
III
Samarium (62) Sm-145
Sm-147
Sm-151
Sm-153
III
III
IV
IV
Scandium (21) Sc-46
Sc-47
Sc-48
III
IV
IV
Selenium (34) Se-75 IV
Silicon (14) Si-31 IV
Silver (47) Ag-105
Ag-110m
Ag-111
IV
III
IV
Sodium (11) Na-22
Na-24
III
IV
Strontium (38) Sr-85m
Sr-85
Sr-89
Sr-90
Sr-91
Sr-92
IV
IV
III
II
III
IV
Sulfur (16) S-35 IV
Tantalum (73) Ta-182 III
Technetium (43) Tc-96m
Tc-96
Tc-97m
Tc-97
Tc-99m
Tc-99
IV
IV
IV
IV
IV
IV
Tellurium (52) Te-125m
Te-127m
Te-127
Te-129m
Te-129
Te-131m
Te-132
IV
IV
IV
III
IV
III
IV
Terbium (65) Tb-160 III
Thallium (81) Tl-200
Tl-201
Tl-202
Tl-204
IV
IV
IV
III
Thorium (90) Th-227
Th-228
Th-230
Th-231
Th-232
Th-234
Th-Natural
II
I
I
I
III
II
III
Thulium (69) Tm-168
Tm-170
Tm-171
III
III
IV
Tin (50) Sn-113
Sn-117m
Sn-121
Sn-125
IV
III
III
IV
Tritium (1) H-3
H-3 (as a gas, as luminous
paint, or adsorbed on solid
material.)
IV
VII

Tungsten (74) W-181
W-185
W-187
IV
IV
IV
Uranium (92) U-230
U-232
U-233 F
U-234
U-235 F
U-236
U-238
U-Natural
U-Enriched F
U-Depleted
II
I
II
II
III
II
III
III
III
III
Vanadium (23) V-48
V-49
IV
III
Xenon (54) Xe-125
Xe-131m
Xe-131m (uncompressed)
Xe-133
Xe-133 (uncompressed)
Xe-135
Xe-135 (uncompressed)
III
III
V
III
VI
II
V
Ytterbium (70) Yb-175 IV
Yttrium (39) Y-88
Y-90
Y-91m
Y-91
Y-92
Y-93
III
IV
III
III
IV
IV
Zinc (30) Zn-65
Zn-69m
Zn-69
IV
IV
IV
Zirconium (40) Zr-93
Zr-95
Zr-97
IV
III
IV

NOTE: For mixtures of radionuclides and for radionuclides not included in this subsection, see
subsection (b) of this section, waste processing and storage categories.
____________________________________
*Atomic number shown in parentheses.
** Atomic mass number shown after the element symbol.
F Fissile material.
m Metastable state.
Uncompressed means at a pressure not exceeding 1 atmosphere.