DEAC accreditation manual (2020 ed.), p. 77.
An appropriately credentialed doctoral committee approves dissertation and capstone project topics.
Dissertations or capstone projects are appropriately defended by doctoral candidates before a doctoral committee via distance or in person.
Professional doctoral degrees are awarded upon final approval by a majority of the doctoral committee.(Cf. DEAC 2020, p. 77)
4. DISSERTATION SUPERVISORY COMMITTEE
A doctoral committee of at least three faculty members is assigned for each student. Doctoral committee members possess appropriate credentials, scholarship, experience, and practice in the field of study. At least one member of the doctoral committee is a member of the awarding institution’s faculty. At least two members of the doctoral committee have earned doctoral degrees from appropriately accredited institutions other than from the awarding institution. All committee members are qualified in the subject area of the dissertation or research project topic. The institution has final approval for students who nominate faculty to the doctoral committee.
(Cf. DEAC 2020 p. 85)
All committee members are qualified in the subject area of the dissertation or research project topic
This could be interpreted to mean either of two things: