12 Va. Admin. Code § 5-481-3040
C. The general license applies only when a package's contents:
D. The general license applies only to packages containing fissile material that are labeled with a CSI that:
E. The value for the CSI must be greater than or equal to the number calculated by the following equation:
4. Table 4 values for X, Y, and Z must be used to determine the CSI if:
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 4 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) | Fissile material mass mixed with moderating substances having an average hydrogen density greater than H2Oa (grams) |
| U-235 (X) | 60 | 38 |
| U-233 (Y) | 43 | 27 |
| Pu-239 or Pu-241 (Z) | 37 | 24 |
| aWhen 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 5 Mass Limits for General License Packages Containing Uranium-235 of Known Enrichment | |
| Uranium enrichment in weight percent of U-235 not exceeding | Fissile material mass of U-235 (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 |

§ 32.1-229 of the Code of Virginia.
Derived from Virginia Register Volume 22, Issue 25, eff. September 20, 2006; amended, Virginia Register Volume 24, Issue 18, eff. June 12, 2008.