Romania follows the Bologna scheme and most of its tertiary level programmes is made of three cycles: a three-year bachelor's degree, followed by a two-year master's degree, and a three-year doctoral's degree. However, some programmes take longer to complete, for example those in engineering fields (four-year programmes), or some bachelor's and master's degree are combined into a unique six-year programme (medicine, and architecture). Master's programs are a prerequisite for admission to PhD programs. Vocational education is handled by post-secondary schools with programmes lasting two years.