One degree is conferred. There is one diploma but two majors have been completed and both majors are listed on the transcript. Work must be completed at the same time.
For example, there are three double majors approved at the doctoral level:
Statistics & Agronomy
Statistics & Economics
Statistics & Natural Resource Sciences
The professional/scholastic goals of some graduate students may be enhanced substantially by acquiring more knowledge than is currently provided by the option of earning a minor. They can do this by studying in a second field as a double major. This is not the same as a dual degree (i.e., two Masters degrees in separate majors, typically 60+ credit hours).
Graduate students in pre-approved programs may have the option of attaining a double major within the same degree (e.g., Master of Arts or a Ph.D. in two different majors):
If a student is already pursuing a major in a degree program, then decides he or she would like to obtain a second major, a new application is required. The new application must be approved by the original graduate committee prior to review by the second graduate committee.
Once the degree is conferred, a second major cannot be attained. Students then would be required to apply for admission to a second degree program, and upon acceptance, complete all requirements of a full independent program.