California has two grounds for divorce: (1) irretrievable breakdown of the marriage; or (2) incurable insanity. The first ground is a ``no fault'' basis for divorce. it is not necessary to prove fault in order to get divorced.
A: The quickest and least expensive way to get a divorce in California is to have an uncontested divorce. This means that both parties are amicable and able to reach a reasonable agreement on the terms of the divorce. The process can take much longer if one or both parties are unwilling to come to an agreement.