You can report an excessively smoky lorry or bus to the Driver and Vehicle Standards Agency (DVSA).
Report a smoky vehicle
If you see a smoky vehicle such as a lorry or bus, you can report it online.
If you see a smoky vehicle such as a lorry or bus, you can report it online.
You can report an excessively smoky lorry or bus to the Driver and Vehicle Standards Agency (DVSA).