Recently, the implementation of the Bologna Declaration introduced bachelor's and master's degrees as well as ECTS credits to the German higher education system. Previously, universities conferred Diplom and Magister degrees depending on the field of study, which usually took 4–6 years. These were the only degrees below the doctorate. In the majority of subjects, students can only study for bachelor's and master's degrees, as Diplom or Magister courses do not accept new enrollments. However, a few Diplom courses still prevail. The standard period of study is usually three years (six semesters, with 180 ECTS points) for bachelor's degrees and two years (four semesters, 120 ECTS) for master's degrees. The following Bologna degrees are common in Germany: