| Type | Number | Title | Status | Office | Date |
|---|---|---|---|---|---|
| Order | JO 6740.2D | Maintenance of Nondirectional Beacons (NDB) | Active | AJW-152 | |
| Order | 6740.6 | U.S. National Aviation Standard for the Nondirectional Beacon (NDB) Automatic Direction Finder (ADF) System | Active | ADS-110 | |
| Order | AF P 6740.1 | Navigational Aids Facilities and Equipment Modification Handbook -Non Directional Beacon (NDB) | Active | AJW-152 | |
| Order | 6740.3 | Support Drawings for Nondirectional Beacon Installation | Active | AJM-32 | |
| Order | 6740.4 | Nondirectional Beacon (NDB) Installation Standards Handbook | Active | AJM-32 |
