10 CFR Appendix P to Part 110, Category 1 and 2 Radioactive Material

prev | next
Appendix P to Part 110 - Category 1 and 2 Radioactive Material

Table 1 - Import and Export Threshold Limits

Radioactive material Category 1 Category 2
Terabequerels
(TBq)
Curies
(Ci) 1
Terabequerels
(TBq)
Curies
(Ci) 1
Americium-241 60 1,600 0.6 16
Americium-241/Be 60 1,600 0.6 16
Californium-252 20 540 0.2 5.4
Curium-244 50 1,400 0.5 14
Cobalt-60 30 810 0.3 8.1
Cesium-137 100 2,700 1.0 27
Gadolinium-153 1,000 27,000 10.0 270
Iridium-192 80 2,200 0.8 22
Plutonium-238 2 60 1,600 0.6 16
Plutonium-239/Be 2 60 1,600 0.6 16
Promethium-147 40,000 1,100,000 400 11,000
Radium-226 a 40 1,100 0.4 11
Selenium-75 200 5,400 2.0 54
Strontium-90 (Y-90) 1,000 27,000 10.0 270
Thulium-170 20,000 540,000 200 5,400
Ytterbium-169 300 8,100 3.0 81

1 The values to be used to determine whether a license is required are given in TBq. Curie (Ci) values are provided for practical usefulness only and are rounded after conversion.

2 The limits for Pu-238 and Pu-239/Be in this table apply for imports to the U.S. The limits for exports of Pu-238 and Pu-239/Be can be found in § 110.21.

a Discrete sources of radium-226.

Calculation of Shipments Containing Multiple Sources or Radionuclides

The “sum of fractions” methodology for evaluating combinations of radionuclides being transported, is to be used when import or export shipments contain multiple sources or multiple radionuclides. The threshold limit values used in a sum of the fractions calculation must be the metric values (i.e., TBq).

I. If multiple sources and/or multiple radionuclides are present in an import or export shipment, the sum of the fractions of the activity of each radionuclides must be determined to verify the shipment is less than the Category 1 or 2 limits of Table 1, as appropriate. If the calculated sum of the fractions ratio, using the following equation, is greater than or equal to 1.0, then the import or export shipment exceeds the threshold limits of Table 1 and the applicable security provisions of this part apply.

II. Use the equation below to calculate the sum of the fractions ratio by inserting the actual activity of the applicable radionuclides or of the individual sources (of the same radionuclides) in the numerator of the equation and the corresponding threshold activity limit from the Table 1 in the denominator of the equation. Ensure the numerator and denominator values are in the same units and all calculations must be performed using the TBq (i.e., metric) values of Table 1.

R1 = activity for radionuclides or source number 1
R2 = activity for radionuclides or source number 2
RN = activity for radionuclides or source number n
AR1 = activity limit for radionuclides or source number 1
AR2 = activity limit for radionuclides or source number 2
ARN = activity limit for radionuclides or source number n
[ 70 FR 37993, July 1, 2005, as amended at 71 FR 20339, Apr. 20, 2006]

This is a list of United States Code sections, Statutes at Large, Public Laws, and Presidential Documents, which provide rulemaking authority for this CFR Part.

This list is taken from the Parallel Table of Authorities and Rules provided by GPO [Government Printing Office].

It is not guaranteed to be accurate or up-to-date, though we do refresh the database weekly. More limitations on accuracy are described at the GPO site.


United States Code
U.S. Code: Title 5 - GOVERNMENT ORGANIZATION AND EMPLOYEES
U.S. Code: Title 22 - FOREIGN RELATIONS AND INTERCOURSE
U.S. Code: Title 42 - THE PUBLIC HEALTH AND WELFARE

§ 2071 - Determination of other material as special nuclear material; Presidential assent; effective date

§ 2073 - Domestic distribution of special nuclear material

§ 2074 - Foreign distribution of special nuclear material

§ 2077 - Unauthorized dealings in special nuclear material

§ 2092 - License requirements for transfers

§ 2093 - Domestic distribution of source material

§ 2094 - Foreign distribution of source material

§ 2095 - Reports

§ 2111 - Domestic distribution

§ 2112 - Foreign distribution of byproduct material

§ 2133 - Commercial licenses

§ 2134 - Medical, industrial, and commercial licenses

§ 2139 - Component and other parts of facilities

§ 2139a - Regulations implementing requirements relating to licensing for components and other parts of facilities

§ 2141 - Licensing by Nuclear Regulatory Commission of distribution of special nuclear material, source material, and byproduct material by Department of Energy

§ 2151 - Effect of international arrangements

§ 2152 - Policies contained in international arrangements

§ 2153 - Cooperation with other nations

§ 2153a - Approval for enrichment after export of source or special nuclear material; export of major critical components of enrichment facilities

§ 2153b - Export policies relating to peaceful nuclear activities and international nuclear trade

§ 2153c - Renegotiation of agreements for cooperation

§ 2153d - Authority to continue agreements for cooperation entered into prior to March 10, 1978

§ 2153e - Protection of environment

§ 2153e-1

§ 2153f - Savings clause; Nuclear Non-Proliferation Act of 1978

§ 2154 - International atomic pool

§ 2155 - Export licensing procedures

§ 2155a - Regulations establishing Commission procedures covering grant, suspension, revocation, or amendment of nuclear export licenses or exemptions

§ 2156 - Criteria governing United States nuclear exports

§ 2156a - Regulations establishing levels of physical security to protect facilities and material

§ 2157 - Additional export criterion and procedures

§ 2158 - Conduct resulting in termination of nuclear exports

§ 2159 - Congressional review procedures

§ 2160 - Subsequent arrangements

§ 2160a - Review of Nuclear Proliferation Assessment Statements

§ 2160b - Authority to suspend nuclear cooperation with nations which have not ratified the Convention on the Physical Security of Nuclear Material

§ 2160c - Consultation with Department of Defense concerning certain exports and subsequent arrangements

§ 2160d - Further restrictions on exports

§ 2201 - General duties of Commission

§ 2231 - Applicability of administrative procedure provisions; definitions

§ 2232 - License applications

§ 2233 - Terms of licenses

§ 2234 - Inalienability of licenses

§ 2236 - Revocation of licenses

§ 2237 - Modification of license

§ 2239 - Hearings and judicial review

§ 2243 - Licensing of uranium enrichment facilities

§ 2273 - Violation of sections

§ 2282 - Civil penalties

§ 5841 - Establishment and transfers

U.S. Code: Title 44 - PUBLIC PRINTING AND DOCUMENTS
Statutes at Large

Title 10 published on 10-May-2017 03:48

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 10 CFR Part 110 after this date.

  • 2015-12-01; vol. 80 # 230 - Tuesday, December 1, 2015
    1. 80 FR 74974 - Miscellaneous Corrections
      GPO FDSys XML | Text
      NUCLEAR REGULATORY COMMISSION
      Final rule.
      This rule is effective December 31, 2015.
      10 CFR Parts 1, 2, 4, 7, 9, 11, 15, 19, 20, 21, 25, 26, 30, 32, 37, 40, 50, 51, 52, 55, 60, 61, 62, 63, 70, 71, 72, 73, 74, 76, 81, 95, 100, 110, 140, 150, 170, and 171