| 1/00 | Arrangements of braking elements, i.e. of those parts where braking effect occurs |
| 1/02 | Arrangements of braking elements, i.e. of those parts where braking effect occurs acting by retarding wheels |
| 1/04 | Arrangements of braking elements, i.e. of those parts where braking effect occurs acting by retarding wheels acting directly on tread |
| 1/06 | Arrangements of braking elements, i.e. of those parts where braking effect occurs acting by retarding wheels acting otherwise than on tread, e.g. employing rim, drum, disc, or transmission |
| 1/08 | Arrangements of braking elements, i.e. of those parts where braking effect occurs acting by retarding wheels using fluid or powdered medium |
| 1/087 | Arrangements of braking elements, i.e. of those parts where braking effect occurs acting by retarding wheels using fluid or powdered medium in hydrodynamic, i.e. non-positive displacement, retarders |
| 1/093 | Arrangements of braking elements, i.e. of those parts where braking effect occurs acting by retarding wheels using fluid or powdered medium in hydrostatic, i.e. positive displacement, retarders |
| 1/10 | Arrangements of braking elements, i.e. of those parts where braking effect occurs acting by retarding wheels by utilising wheel movement for accumulating energy, e.g. driving air compressors (using propulsion unit as braking means, see the relevant class) |
| 1/12 | Arrangements of braking elements, i.e. of those parts where braking effect occurs acting otherwise than by retarding wheels, e.g. jet- action |
| 1/14 | Arrangements of braking elements, i.e. of those parts where braking effect occurs acting otherwise than by retarding wheels, e.g. jet- action directly on road (portable devices, e.g. chocks, B60T 3/00) |
| 1/16 | Arrangements of braking elements, i.e. of those parts where braking effect occurs acting otherwise than by retarding wheels, e.g. jet- action by increasing air resistance, e.g. flaps |
| 3/00 | Portable devices for preventing unwanted movement of vehicles, e.g. chocks |
| 5/00 | Vehicle modifications to facilitate cooling of brakes |
| 7/00 | Brake-action initiating means |
| 7/02 | Brake-action initiating means for personal initiation |
| 7/04 | Brake-action initiating means for personal initiation foot-actuated |
| 7/06 | Brake-action initiating means for personal initiation foot-actuated Disposition of pedal |
| 7/08 | Brake-action initiating means for personal initiation hand-actuated |
| 7/10 | Brake-action initiating means for personal initiation hand-actuated Disposition of hand control |
| 7/12 | Brake-action initiating means for automatic initiation; for initiation not subject to will of driver or passenger |