§ 31.1 - Purpose and scope.

§ 31.2 - Terms and conditions.

§ 31.3 - [Reserved]

§ 31.4 - Information collection requirements: OMB approval.

§ 31.5 - Certain detecting, measuring, gauging, or controlling devices and certain devices for producing light or an ionized atmosphere.

§ 31.6 - General license to install devices generally licensed in § 31.5.

§ 31.7 - Luminous safety devices for use in aircraft.

§ 31.8 - Americium-241 and radium-226 in the form of calibration or reference sources.

§ 31.9 - General license to own byproduct material.

§ 31.10 - General license for strontium 90 in ice detection devices.

§ 31.11 - General license for use of byproduct material for certain in vitro clinical or laboratory testing.

§ 31.12 - General license for certain items and self-luminous products containing radium-226.

§ 31.13 - Violations.

§ 31.14 - Criminal penalties.

§ 31.21 - Maintenance of records.

§ 31.22 - Violations.

§ 31.23 - Criminal penalties.

§§ 31.13--31.20 - [Reserved]