A vocational level 3 course is an equivalent qualification to 1 or more A-Levels. Sometimes these are referred to as ‘BTECs’ although that is just one of many exam boards or as Applied Generals’
There are 2 main types:
Large vocational programmes are the equivalent of 2 or 3 A-Levels and will make up most or all of your programme. Examples are Sport, Performing Arts or Media. If you do a 2 A-Level equivalent Diploma you would be expected to add an A-Level or equivalent qualification. These large vocational courses have a strong focus on one sector of the economy and as part of your programme you will do some work-experience, ideally in that sector.
Small vocational or applied general qualifications are the equivalent of 1 A-Level and can be taken in combination with A-Levels or other small applied generals to make up your programme. The range of these courses has expanded recently and include Music Technology, Applied Biology and Criminology.
Both types of programme can be used to go on to University although the large programmes are also designed to help you get a job in the sector you are studying.