Regular Member shall be any US-trained Osteopathic Physician who:

1. Holds a Doctor of Osteopathic Medicine (Doctor of Osteopathy) Degree from a College of Osteopathic Medicine Accredited by the Commission on Osteopathic College Accreditation (COCA).
2. Holds an unrestricted license to practice in any of the US states or territories, or is an active duty officer is the Medical Corps of the US Military.
3. Has completed and submitted an application.
4. Has remitted appropriate dues.
5. Complies with Article XIII, Statement of the Code of Ethics

Associate Members will have the privileges of a Regular Member except for the right to vote. An Associate Member shall be any US-trained Physician or Dentist who:

1. Holds a Doctor of Medicine (MD) or Doctor of Dental Medicine or Surgery (DMD, DDS) Degree from an accredited College or University within their specialty.
2. Holds an appropriate license to practice in any of the US states or territories, or is an active duty officer is the Medical Corps of the US Military.
3. Has completed and submitted an application.
4. Has remitted appropriate dues.
5. Complies with Article XIII, Statement of the Code of Ethics

Affiliate Members will have the privileges of a Regular Member except for the right to vote. An Affiliate Member shall be any Internationally Trained Osteopath, Physician or Dentist who:

1. Holds an appropriately accredited degree in their specialty.
2. Is properly licensed or certified to practice their specialty within the country they reside and/or work.
3. Has completed and submitted an application.
4. Is approved by the Executive Board of the AAPO.
5. Has remitted appropriate dues.
6. Complies with Article XIII, Statement of the Code of Ethics

Student Members will have the privileges of a Regular Member except for the right to vote. A Student Member shall be any Medical or Dental student who:

1. Is enrolled in a College of Osteopathic Medicine accredited by the Commission on Osteopathic College Accreditation (COCA) or his enrolled in a Medical College accredited by the Liaison Committee on Medical Education (LCME) or is enrolled in an accredited Dental School.
2. Has completed and submitted an application.
3. Has remitted appropriate dues.
4. Complies with Article XIII, Statement of the Code of Ethics

Resident Members will have the privileges of a Regular Member except for the right to vote. A Resident Member shall be any US-trained Physician who:

1. Holds a Doctor of Osteopathic Medicine (DO) Degree from a College of Osteopathic Medicine accredited by the Commission on Osteopathic College Accreditation (COCA) or holds a Doctor of Medicine (MD) Degree from a Medical College accredited by the Liaison Committee on Medical Education (LCME).
2. Holds a training licensed to practice in any of the US states or territories and is enrolled in an accredited US residency program of any specialty.
3. Has completed and submitted an application.
4. Has remitted appropriate dues.
5. Complies with Article XIII, Statement of the Code of Ethics