10 CFR 71.83 - Assumptions as to unknown properties.

§ 71.83 Assumptions as to unknown properties.
When the isotopic abundance, mass, concentration, degree of irradiation, degree of moderation, or other pertinent property of fissile material in any package is not known, the licensee shall package the fissile material as if the unknown properties have credible values that will cause the maximum neutron multiplication.

Title 10 published on 2015-01-01.

No entries appear in the Federal Register after this date, for 10 CFR Part 71.

Title 10 published on 2015-01-01

The following are ALL rules, proposed rules, and notices (chronologically) published in the Federal Register relating to 10 CFR Part 71 after this date.

  • 2015-03-17; vol. 80 # 51 - Tuesday, March 17, 2015
    1. 80 FR 13794 - Requirement To Submit Complete and Accurate Information
      GPO FDSys XML | Text
      NUCLEAR REGULATORY COMMISSION
      Petition for rulemaking; consideration in the rulemaking process.
      The docket for the petition for rulemaking, PRM-50-107, is closed on March 17, 2015.
      10 CFR Parts 30, 40, 50, 52, 60, 61, 63, 70, 71, and 72