In September 2017 regulations were made that removed exemptions from statutory vehicle testing for a number of specialised heavy vehicles, including Mobile Concrete Batching Plant (MCBP). An impact assessment was published alongside these regulations. In January 2018 regulations were made that modified exemptions from operator licensing for certain vehicle types, including MCBP. No formal impact assessment was produced as the costs implied were estimated to be below the threshold considered proportionate. There have been no legislative changes to the weight limits applicable to MCBP vehicles.