Section 2310 Of Chapter 2. Grounds For Dissolution Or Legal Separation From California Family Law Code >> Division 6. >> Part 3. >> Chapter 2.

. Dissolution of the marriage or legal separation of the parties may be based on either of the following grounds, which shall be pleaded generally:
  (a) Irreconcilable differences, which have caused the irremediable breakdown of the marriage.
  (b) Permanent legal incapacity to make decisions.