This rulemaking addresses the adoption of appropriate requirements found in 79 FR 43666. This rule change amends regulations in Section R313-21-22 to make requirements for distributors of radioactive material clearer, less prescriptive, and more risk-informed and up to date. This amendment also redefines categories of devices to be used under exemptions, adding explicit provisions regarding the sealed source and device registration process, and adding flexibility to the licensing of users of sealed sources and devices. This amendment is primarily intended to make the licensing process more efficient and effective.