In England and Wales, secondary school is for children from the ages of 11 to 16 or 11 to 18.[3] Secondary school incorporates Key Stage 3 and Key Stage 4 of the National Curriculum (Year Seven to Year Eleven). After Year 11, they may leave school but must stay in some form of education until they are in the equivalent of Year 13/Upper Sixth. This could involve doing A-Levels or BTECS at a sixth form college, vocational diplomas at college or an apprenticeship. The last year group that could leave compulsory education after Year 11 was the Year 11 class of 2012. (Started Reception/Foundation Year in 2000.)