The PhD is awarded on the basis of a research thesis that provides evidence that the candidate has:

1. made an original and substantial contribution to knowledge.

2. a deep knowledge of the specific area that has been researched.

3. a broad knowledge of the context within which the specific area of research falls.

The maximum duration of study is 4 years full-time or 6 years part-time. Extensions or intermissions can be obtained for good reasons (e.g. health, financial problems, unavoidable delays in obtaining samples or equipment). Applications should be submitted to the Secretary of the Faculty Higher Degrees Committee and be supported by a letter from the supervisor. (Further information on regulations associated with candidature are contained in the policies and procedures manual for Research Higher Degrees Policies and Procedures.)