Division Group B: mode of operationF1
United Kingdom
| CB01-4 | Electrically heated |
| CB02-7 | Remote-controlled |
| CB03-0 | High pressure |
| CB04-3 | High-voltage |
| CB05-6 | Low pressure |
| CB06-9 | Low-voltage |
| CB07-2 | Medium pressure |
| CB08-5 | 4-wheel-drive |
| CB09-8 | Diesel-powered |
| CB10-1 | Electrically powered |
| CB11-4 | Hydro-electric power |
| CB12-7 | Nuclear powered |
| CB13-0 | Solar powered |
| CB14-3 | Petrol-engined |
| CB15-6 | Mechanical |
| CB16-9 | Mechanical and electrical |
| CB17-2 | Self-drive |
| CB18-5 | Automatic |
| CB19-8 | Computerised |
| CB20-1 | Computer-aided |
| CB21-4 | Computer-based |
| CB22-7 | Computer-controlled |
| CB23-0 | Multiprocessing |
| CB24-3 | Synchronous |
| CB25-6 | Asynchronous |
| CB26-9 | Handheld |
| CB27-2 | Integrated |
| CB28-5 | Fossil-fuel-fired |
| CB29-8 | Coal-fired |
| CB30-1 | Gas-fired |
| CB31-4 | Oil-fired |
| CB32-7 | Wood-fired |
| CB33-0 | 1-phased |
| CB34-3 | 2-phased |
| CB35-6 | 3-phased |
| CB36-9 | Instant |
| CB37-2 | Single-phase |
| CB38-5 | Stand-alone |
| CB39-8 | Uninterruptible |
| CB40-1 | Interruptible |
| CB41-4 | Hybrid powered |
| CB42-7 | Battery powered |
| CB43-0 | Bio-diesel powered |
| CB44-3 | Hydrogen powered |
| CB45-6 | Ethanol powered |
| CB46-9 | Kerosene powered |
| CB47-2 | Gas-powered |