British army tanks and other armoured tracked vehicles are currently restricted to a maximum speed of 20 mph under the Road Traffic Regulation Act 1984.
In order to prepare for operational deployments our armed forces need effective and appropriate training, and the government now plans to increase this speed limit to a maximum of 40 mph in England and Wales. Actual operating speeds will still depend on careful risk assessments by the military and specific vehicle capabilities.
The plans under consultation will help address congestion that can be created by slow-moving vehicles on faster roads. Increasing the maximum speed limit to 40 mph will also reduce costs of higher fuel consumption and the time taken for training and testing when vehicles are limited to 20 mph.