ECCN
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1C236
1C236 Radionuclides appropriate for making neutron sources based on alpha-n reaction and products or devices containing such radionuclides (see List of Items Controlled).
- Category
- Category 1—Special Materials and Related Equipment, Chemicals, “Microorganisms,” and “Toxins”
- Product group
- C. “Materials”
Reason for Control
- NP
- AT
Official text
License Requirements
Reason for Control:
NP, AT
Control(s) Country Chart (See Supp. No. 1 to part 738)
- NP applies to entire entry NP Column 1
- AT applies to entire entry AT Column 1
List Based License Exceptions (See Part 740 for a description of all license exceptions)
LVS: N/A
GBS: N/A
List of Items Controlled
Related Controls: (1) See ECCNs 1E001 (“development” and “production”) and 1E201 (“use”) for technology for items controlled by this entry. (2) Certain alpha-emitting radionuclides are subject to the export licensing authority of the Nuclear Regulatory Commission (see 10 CFR part 110).
Related Definitions: N/A
ECCN Controls:
This entry does not control a product or device containing less than 3.7 GBq (100 millicuries) of activity.
Items: a. Radionuclides identified in 1C236.a.1 in any of the forms described in 1C236.a.2:
a.1. Radionuclides, as follows, appropriate for making neutron sources based on alpha-n reactions:
a.1.a. Actinium 225;
a.1.b. Actinium 227;
a.1.c. Californium 253;
a.1.d. Curium 240;
a.1.e. Curium 241;
a.1.f. Curium 242;
a.1.g. Curium 243;
a.1.h. Curium 244;
a.1.i. Einsteinium 253;
a.1.j. Einsteinium 254;
a.1.k. Gadolinium 148;
a.1.l. Plutonium 236;
a.1.m. Plutonium 238;
a.1.n. Polonium 208;
a.1.o. Polonium 209;
a.1.p. Polonium 210;
a.1.q. Radium 223;
a.1.r. Thorium 227;
a.1.s. Thorium 228;
a.1.t. Uranium 230;
a.1.u. Uranium 232; and
a.2. In any of the following forms:
a.2.a. Elemental;
a.2.b. Compounds having a total activity of 37 GBq (1 curie) per kg or greater; or
a.2.c. Mixtures having a total activity of 37 GBq (1 curie) per kg or greater.
b. Products or devices containing radionuclides identified in 1C236.a.1 in any of the forms described in 1C236.a.2.
ecfr-15cfr774-supp1-2026-08-28 · effective 2026-08-28
Issue date 2026-08-28. Amendment date 2026-08-28.
- eCFR Commerce Control List (15 CFR 774, Supplement No. 1)www.ecfr.gov
- eCFR versioner XML captured at ingestwww.ecfr.gov
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