Louisiana Administrative Code
Title 33 - ENVIRONMENTAL QUALITY
Part XV - Radiation Protection
Chapter 15 - Transportation of Radioactive Material
Section XV-1511 - General License: Fissile Material

Universal Citation: LA Admin Code XV-1511

Current through Register Vol. 50, No. 12, December 20, 2024

A. A general license is issued to any licensee of the department to transport fissile material, or to deliver fissile material to a carrier for transport, if the material is shipped in accordance with this Section. The fissile material need not be contained in a package that meets the standards of LAC 33:XV.1513; however, the material must be contained in a Type A package. The Type A package must also meet the U.S. DOT requirements of 49 CFR 173.417(a).

B. The general license applies only to a licensee who has a quality assurance program approved by the department as satisfying the provisions of 10 CFR Part 71, Subpart H.

C. The general license applies only when a package's contents:

1. contain no more than a Type A quantity of radioactive material; and

2. contain less than 500 total grams of beryllium, graphite, or hydrogenous material enriched in deuterium.

D. The general license applies only to packages containing fissile material that are labeled with a criticality safety index (CSI) that:

1. has been determined in accordance with Subsection E of this Section;

2. has a value less than or equal to 10; and

3. for a shipment of multiple packages containing fissile material, the sum of the CSIs is less than or equal to 50, for shipment on a nonexclusive use conveyance, or less than or equal to 100, for shipment on an exclusive use conveyance.

E. The following requirements must be met when determining the CSI.

1. The value for the CSI must be greater than or equal to the number calculated by the following equation.

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2. The calculated CSI must be rounded up to the first decimal place.

3. The values of X, Y, and Z used in the CSI equation must be taken from Tables 1 or 2 of this Section, as appropriate.

4. If Table 2 of this Section is used to obtain the value of X, then the values for the terms in the equation for uranium-233 and plutonium must be assumed to be zero.

5. Table 1 values for X, Y, and Z must be used to determine the CSI if:
a. uranium-233 is present in the package;

b. the mass of plutonium exceeds 1 percent of the mass of uranium-235;

c. the uranium is of unknown uranium-235 enrichment or greater than 24 weight percent enrichment; or

d. substances having a moderating effectiveness (i.e., an average hydrogen density greater than H2O) (e.g., certain hydrocarbon oils or plastics) are present in any form, except as polyethylene used for packing or wrapping.

Table 1

Mass Limits for General License Packages Containing Mixed Quantities of Fissile Material or Uranium-235 of Unknown Enrichment

Fissile material

Fissile material mass mixed with moderating substances having an average hydrogen density less than or equal to H2O (grams)

style='text-align:center;page-break-after: avoid'Fissile material mass mixed with moderating substances having an average hydrogen density greater than H2Oa (grams)

235 U (X)

60

style='text-align:center;page-break-after: avoid'38

233 U (Y)

43

style='text-align:center;page-break-after: avoid'27

239 Pu or 241Pu (Z)

37

style='text-align:center;page-break-after: avoid'24

a When mixtures of moderating substances are present, the lower mass limits shall be used if more than 15 percent of the moderating substance has an average hydrogen density greater than H2O.

Table 2

Mass Limits for General License Packages Containing Uranium-235 of Known Enrichment

Uranium enrichment in weight percent of 235U, not exceeding

Fissile material mass of 235U (X) (grams)

24

60

20

63

15

67

11

72

10

76

9.5

78

9

81

8.5

82

8

85

7.5

88

7

90

6.5

93

6

97

5.5

102

5

108

4.5

114

4

120

3.5

132

3

150

2.5

180

2

246

1.5

408

1.35

480

1

1,020

0.92

1,800

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:2104(B) and 2113.

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