California Code, Military and Veterans Code - MVC § 260

(a) Expiration of term of service.

(b) Attainment of the age of 64 years.

(c) Acceptance of appointment as a commissioned officer in the state or federal service.

(d) To enlist in the United States Army, Navy, Marine Corps, Air Force, Space Force, or Coast Guard.

(e) To accept appointment in the United States Military Academy, Naval Academy, Air Force Academy, or Coast Guard Academy.

(f) To accept appointment as a flying cadet.

(g) To re-enlist.

(h) Discontinuance of the organization in which the person is serving.

(i) Change of residence.

(j) Certificate of disability.

(k) Inaptness or misconduct.

(l) Fraudulent enlistment.

(m) Action of civil or military court.

(n) Draft into the service of the United States.

(o) Business or educational interference.

(p) Any other reason the Governor deems adequate and satisfactory.

(q) For the best interests of the military service.

(r) For the good of the service.

(s) For absence without leave.

(t) Active participation in any of the conduct set forth in subdivision (a) of Section 240.