What is an academic discipline? Is Academic Discipline synonymous to "relevant field of study"? Commission on Higher Education (CHED) of the Philippines Circular Memorandum Order (CMO) No. 15 Series of 2019 states that Dissertation Advisers should have a PhD in the Academic Discipline that their students are taking up. Is "relevant field of study" the same with one's understanding of academic discipline? For instance, is the field of Forestry the same Academic Discipline as Environmental Science? Another example is, is the Academic Discipline of Anthropology the same Academic Discipline with Sociology?