Driving an electric or hydrogen-powered vehicle
Information on weight limits and how to safely drive zero emission vehicles that have a maximum authorised mass between 3,500kg and 4,250kg.
Applies to England, Scotland and Wales
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If you hold a category B driving licence, you can drive an electric or hydrogen-powered vehicle with a maximum authorised mass (MAM) of up to 4,250kg. The vehicle must be a zero emission vehicle.
The normal MAM limit for petrol and diesel vehicles with a category B licence is 3,500kg.
This guidance provides more information about the MAM limits for zero emission vehicles and safety advice for using these heavier vehicles, including:
- driving the vehicle
- preparing the vehicle for use
- towing safely
Read separate guidance about:
Updates to this page
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Maximum authorised mass (MAM) for driving an electric or hydrogen-powered vehicle on a category B licence increased to 4,250kg.
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First published.