The usual formal training period for a chef is two to four years in catering college. They often spend the summer in work placements. In some cases this is modified to 'day-release' courses; a chef will work full-time in a kitchen as an apprentice and then would have allocated days off to attend catering college. These courses can last between one and three years. In the UK, most Chefs are trained in the work place, with most doing a formal NVQ level 2 or 3 in the work place.