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 2014-01-01

no entries appear in the Federal Register after this date.

Title 10 published on 2014-01-01

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

  • 2014-02-11; vol. 79 # 28 - Tuesday, February 11, 2014
    1. 79 FR 8097 - Deliberate Misconduct Rule and Hearings on Challenges to the Immediate Effectiveness of Orders
      GPO FDSys XML | Text
      NUCLEAR REGULATORY COMMISSION
      Proposed rule.
      Submit comments by May 12, 2014. Comments received after this date will be considered if it is practical to do so. However, the NRC is able to ensure consideration only of comments received on or before this date.
      10 CFR Parts 2, 30, 40, 50, 52, 60, 61, 63, 70, 71, 72, 76, 110, and 150