So, firstly, modelled on an existing provision in the Road User Charges Act, the bill does include a provision that any road-user charges for a heavy vehicle that is purchased while the reduced rate is in place become invalid one month after the temporary reduction period. So that's a provision that's already in the Road User Charges Act that continues to apply to this reduced rate for the purposes of heavy vehicles. That's quite a strong safeguard. That means that the heavy sector is not able to, effectively, load up at the lower rate. I wouldn't expect that to happen, but there's the protection that's in place there.