| General Information | 000 Division |
| Administrative Practices | 002 Division |
| Abbreviations, Definitions, Drawings, Requirement Tables, Specifications, and Symbols | 005 Division |
| General Methods | 010 Division |
| Autotransformers, Bells, Buzzers, Dials, Dial Adapters and Mountings, Gongs, Head Telephone Sets, Headsets, Potentiometers, Rheostats, Ringers, and Sounders | 028 Division |
| Calculagraphs, Call Timing Switch, Cameras, Clocks, Counters, Photo Processors, Registers, Selector Multiple Designation Cards, Switches, Tape Printers, Ticketers, Timers, and Time Stamp | 030 Division |
| Capacitors, Connectors, Cords, Cord Reels, Diodes, Drops, Jacks, Keys, Lamps, Plugs, Resistors, Signals, Sockets, Thermistors, Transistors, and Varistors | 032 Division |
| Miscellaneous Equipment and Materials - Furniture, Fixtures, Appliances, Power Plant Materials, Greases, Oils, Cleaning Fluids | 065 Division |
| Miscellaneous Methods | 069 Division |
| Catalogue Information - Tools | 074 Division |
| Tools and Materials - (Common Usage) Maintenance, Selection and Use | 075 Division |
| Tools and Materials - Customer Equipment | 080 Division |
| Tools and Materials - Outside Plant | 081 Division |
| Catalogue Information - Gauges, Electrical Indicating Instruments and Meters | 084 Division |
| Test Equipment, Electrical Indicating Instruments and Meters (Common Usage) Maintenance, Selection and Use | 100 Division |
| Transmission Test Equipment | 103 Division |
| PBX and Station Test Equipment | 105 Division |
| Electrical Test Equipment - Outside Plant | 106 Division |
| Power Plants, Power Units, Power Supply | 167 Division |
| General Information - Customer Equipment | 460 Division |
| Drop and Block Wiring - Dedicated Plant and C Rural Wire | 462 Division |
| Miscellaneous Station Apparatus for use with Station Installations - Customer Equipment | 463 Division |
| Intra-PBX, Protection of Service, Code Calling, Customer Training, Dispatching, Emergency Reporting, Interface Trunks, Message Waiting, Recorded Telephone Dictation, Telephone Answering Systems, and Transmitter Transfer - Customer Equipment | 473 Division |
| Private Service Systems - Customer Equipment | 480 Division |
| General Considerations for Station Installations - Customer Equipment | 500 Division |
| Station Set Components - Customer Equipment | 501 Division |
| Common Battery Station Sets | 502 Division |
| Modular Station Sets - Common Battery | 503 Division |
| Public Telephone Sets | 506 Division |
| Booths, Shelves, Directories, Mountings, and Public Telephone Signs | 508 Division |
| Automatic Dialers, Station Keys, Key Equipment, Interphone Systems, Modular Units, and Speakerphone Systems | 512 Division |
| Telephone Answering and Announcement Sets and Systems | 514 Division |
| Key Telephone Systems, Video Telephone Stations, and Switching Systems - Customer Equipment | 518 Division |
| Sections Applying to more than one PBX Series - 500, 600, 700 and 800 Series Manual and Dial PBX | 534 Division |
| 500 Series PBX | 536 Division |
| 750A PBX | 548 Division |
| Teletypewriter General Information - Miscellaneous Apparatus and Auxiliary Equipment | 570 Division |
| Cable Terminals | 631 Division |
| Station and Customer Premises Equipment Electrical Protection | 876 Division |
| Private Service Systems - General Descriptive Information | 982 Division |
| 950 - 8 Digit Series | 950 Division |
| 981 - 8 Digit Series | 981 Division |
| 986 - 8 Digit Series | 986 Division |
| 991 - 8 Digit Series | 991 Division |
| 993 - 8 Digit Series | 993 Division |
| AA Series | AA Series |
| Private Branch Exchange - Installation and Maintenance | B Series |
| Station Installation and Maintenance | C Series |
| M Series | M Series |
| AT&T Specifications | ATT Specifications |