Ill. Admin. Code tit. 32, § 326.APPENDIX A – Quantities of Material for Major Possessor Determination

Radionuclide	Abbrev.	UNSEALED FORMS	SEALED SOURCES
MBq	mCi	GBq	Ci
Actinium-227	Ac-227	0.037	0.001	370	10
Aluminum-26	Al-26	370	10	37000	1000
Americium-241	Am-241	0.037	0.001	370	10
Americium-242m	Am-242m	0.037	0.001	370	10
Americium-243	Am-243	0.037	0.001	370	10
Antimony-125	Sb-125	3700	100	37000	1000
Barium-133	Ba-133	3700	100	37000	1000
Berkelium-247	Bk-247	0.037	0.001	370	10
Berkelium-249	Bk-249	3.7	0.1	37000	1000
Beryllium-10	Be-10	37	1	37000	1000
Bismuth-207	Bi-207	370	10	37000	1000
Bismuth-210m	Bi-210m	3.7	0.1	37000	1000
Cadmium-109	Cd-109	37	1	37000	1000
Cadmium-113	Cd-113	3700	100	37000	1000
Cadmium-113m	Cd-113m	3.7	0.1	37000	1000
Calcium-41	Ca-41	3700	100	37000	1000
Californium-248	Cf-248	0.37	0.01	3700	100
Californium-249	Cf-249	0.037	0.001	370	10
Californium-250	Cf-250	0.037	0.001	370	10
Californium-251	Cf-251	0.037	0.001	370	10
Californium-252	Cf-252	0.037	0.001	370	10
Carbon-14	C-14	37000	1000	37000	1000
Cerium-144	Ce-144	37	1	37000	1000
Cesium-134	Cs-134	370	10	37000	1000
Cesium-135	Cs-135	3700	100	37000	1000
Cesium-137	Cs-137	370	10	37000	1000
Chlorine-36	Cl-36	370	10	37000	1000
Cobalt-60	Co-60	37	1	37000	1000
Curium-243	Cm-243	0.037	0.001	370	10
Curium-244	Cm-244	0.037	0.001	370	10
Curium-245	Cm-245	0.037	0.001	370	10
Curium-246	Cm-246	0.037	0.001	370	10
Curium-247	Cm-247	0.037	0.001	370	10
Curium-248	Cm-248	0.037	0.001	370	10
Einsteinium-254	Es-254	0.37	0.01	3700	100
Europium-150 (34.2y)	Eu-150	37	1	37000	1000
Europium-152	Eu-152	37	1	37000	1000
Europium-154	Eu-154	37	1	37000	1000
Europium-155	Eu-155	370	10	37000	1000
Gadolinium-148	Gd-148	0.037	0.001	370	10
Gadolinium-152	Gd-152	3700	100	37000	1000
Germanium-68	Ge-68	370	10	37000	1000
Hafnium-172	Hf-172	37	1	37000	1000
Hafnium-182	Hf-182	3.7	0.1	37000	1000
Holmium-166m	Ho-166m	37	1	37000	1000
Hydrogen-3	H-3	37000	1000	37000	1000
Indium-115	In-115	3700	100	37000	1000
Iodine-129	I-129	37	1	37000	1000
Iron-55	Fe-55	3700	100	37000	1000
Iron-60	Fe-60	37	1	37000	1000
Lanthanum-137	La-137	370	10	37000	1000
Lanthanum-138	La-138	3700	100	37000	1000
Lead-202	Pb-202	370	10	37000	1000
Lead-205	Pb-205	3700	100	37000	1000
Lead-210	Pb-210	0.37	0.01	3700	100
Lutetium-173	Lu-173	370	10	37000	1000
Lutetium-174	Lu-174	370	10	37000	1000
Lutetium-176	Lu-176	3700	100	37000	1000
Manganese-53	Mn-53	37000	1000	37000	1000
Manganese-54	Mn-54	3700	100	37000	1000
Mercury-194	Hg-194	37	1	37000	1000
Molybdenum-93	Mo-93	370	10	37000	1000
Neptunium-235	Np-235	3700	100	37000	1000
Neptunium-236 (1.15x105y)	Np-236	0.037	0.001	370	10
Neptunium-237	Np-237	0.037	0.001	370	10
Nickel-59	Ni-59	3700	100	37000	1000
Nickel-63	Ni-63	3700	100	37000	1000
Niobium-93m	Nb-93m	370	10	37000	1000
Niobium-94	Nb-94	37	1	37000	1000
Osmium-194	Os-194	37	1	37000	1000
Palladium-107	Pd-107	370	10	37000	1000
Platinum-193	Pt-193	37000	1000	37000	1000
Plutonium-236	Pu-236	0.037	0.001	370	10
Plutonium-238	Pu-238	0.037	0.001	370	10
Plutonium-239	Pu-239	0.037	0.001	370	10
Plutonium-240	Pu-240	0.037	0.001	370	10
Plutonium-241	Pu-241	0.37	0.01	3700	100
Plutonium-242	Pu-242	0.037	0.001	370	10
Plutonium-244	Pu-244	0.037	0.001	370	10
Potassium-40	K-40	3700	100	37000	1000
Promethium-144	Pm-144	370	10	37000	1000
Promethium-145	Pm-145	370	10	37000	1000
Promethium-146	Pm-146	37	1	37000	1000
Promethium-147	Pm-147	370	10	37000	1000
Protactinium-231	Pa-231	0.037	0.001	370	10
Radium-226	Ra-226	3.7	0.1	37000	1000
Radium-228	Ra-228	3.7	0.1	37000	1000
Rhenium-186m	Re-186m	370	10	37000	1000
Rhenium-187	Re-187	37000	1000	37000	1000
Rhodium-101	Rh-101	370	10	37000	1000
Rhodium-102	Rh-102	370	10	37000	1000
Rubidium-87	Rb-87	3700	100	37000	1000
Ruthenium-106	Ru-106	37	1	37000	1000
Samarium-145	Sm-145	37000	100	37000	1000
Samarium-146	Sm-146	37	1	37000	1000
Samarium-147	Sm-147	3700	100	37000	1000
Samarium-151	Sm-151	370	10	37000	1000
Selenium-79	Se-79	3700	100	37000	1000
Silicon-32	Si-32	37	1	37000	1000
Sodium-22	Na-22	370	10	37000	1000
Strontium-90	Sr-90	3.7	0.1	37000	1000
Tantalum-179	Ta-179	3700	100	37000	1000
Tantalum-180m	Ta-180m	37000	1000	37000	1000
Technetium-97	Tc-97	37000	1000	37000	1000
Technetium-98	Tc-98	370	10	37000	1000
Technetium-99	Tc-99	3700	100	37000	1000
Tellurium-123	Te-123	3700	100	37000	1000
Terbium-157	Tb-157	370	10	37000	1000
Terbium-158	Tb-158	37	1	37000	1000
Thallium-204	Tl-204	3700	100	37000	1000
Thorium-228	Th-228	0.037	0.001	370	10
Thorium-229	Th-229	0.037	0.001	370	10
Thorium-230	Th-230	0.037	0.001	370	10
Thorium-232	Th-232	3700	100	37000	1000
Thulium-171	Tm-171	370	10	37000	1000
Tin-119m	Sn-119m	3700	100	37000	1000
Tin-121m	Sn-121	37000	1000	37000	1000
Tin-126	Sn-126	370	10	37000	1000
Titanium-44	Ti-44	37	1	37000	1000
Uranium-232	U-232	0.037	0.001	370	10
Uranium-233	U-233	0.037	0.001	370	10
Uranium-234	U-234	0.037	0.001	370	10
Uranium-235	U-235	0.037	0.001	370	10
Uranium-236	U-236	0.037	0.001	370	10
Uranium-238	U-238	3700	100	37000	1000
Vanadium-49	V-49	37000	1000	37000	1000
Zirconium-93	Zr-93	37	1	37000	1000
Thorium-natural		3700	100	37000	1000
Uranium-natural		3700	100	37000	1000

When a combination of nuclides is involved, the limit for the combination shall be derived as follows: For each nuclide, the licensee shall determine the ratio between the quantity authorized on the license and the quantity established in this Appendix A for the form of the material (sealed source or unsealed material). If the sum of the ratios for all nuclides is greater than one, then the licensee shall post financial assurance arrangements.

AGENCY NOTE: Possession of special nuclear material (Plutonium, Uranium-233 and Uranium-235) is limited to quantities not sufficient to form a critical mass as defined in 32 Ill. Adm. Code 310.20.

(Source: Amended at 29 Ill. Reg. 20781, effective December 16, 2005)