General-license devices (gauges, exit signs) QA meets on the flightline. 14 sections, full current text (eCFR edition 2026-07-15), each cross-linked to the AF pubs that cite it.
| Section | Title | AF citations |
|---|---|---|
| 31.1 | Purpose and scope. | — |
| 31.2 | Terms and conditions. | — |
| 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. 2 | 33 × 2 pubs |
| 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. | 3 × 1 pubs |
| 31.11 | General license for use of byproduct material for certain in vitro clinical or laboratory testing. | 7 × 1 pubs |
| 31.12 | General license for certain items and self-luminous products containing radium-226. | 3 × 1 pubs |
| 31.21 | Maintenance of records. | — |
| 31.22 | Violations. | — |
| 31.23 | Criminal penalties. | — |
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