There are two HGV licences that you will need to obtain depending on the category of vehicle you want to drive. To drive a Rigid lorry, you will need to gain your CAT C licence, and to drive an articulated lorry you will need to obtain your C+E licence.
Those who hold a CAT C licence can drive vehicles over 3,500kgs with a trailer up to 750kgs MAM.
Those who hold a C+E licence will be able to drive vehicles over 3,500kgs with a trailer over 750kgs.