Accreditation bodies exist specifically for MBA programs to ensure consistency and quality of graduate business education, and business schools in many countries offer MBA programs tailored to full-time, part-time, executive, and distance learning students, with specialized concentrations.

Business schools or MBA programs may be accredited by external bodies which provide students and employers with an independent view of their quality, and indicate that the school's educational curriculum meets specific quality standards.

Basic types of MBA programs

Two year MBA programs normally take place over two academic years (i.e. approximately 18 months of term time). For example in the Northern Hemisphere beginning in late August/September of year one and continuing until May of year two, with a three to four month summer break in between years one and two. Students enter with a reasonable amount of prior real-world work experience and take classes during weekdays like other university students.

Accelerated MBA programs are a variation of the two year programs. They involve a higher course load with more intense class and examination schedules. They usually have less "down time" during the program and between semesters. For example, there is no three to four month summer break, and between semesters there might be seven to ten days off rather than three to five weeks vacation.

Part-time MBA programs normally hold classes on weekday evenings, after normal working hours. Part-time programs normally last three years or more. The students in these programs typically consist of working professionals, who take a light course load for a longer period of time until the graduation requirements are met.

Executive MBA (EMBA) programs developed to meet the educational needs of managers and executives, allowing students to earn an MBA or another business-related graduate degree in two years or less while working full time. Participants come from every type and size of organization – profit, nonprofit, government — representing a variety of industries. EMBA students typically have a higher level of work experience, often 10 years or more, compared to other MBA students. In response to the increasing number of EMBA programs offered, The Executive MBA Council was formed in 1981 to advance executive education.