Section 3591 Of Article 3. Spousal Support From California Family Law Code >> Division 9. >> Part 1. >> Chapter 3. >> Article 3.
3591
. (a) Except as provided in subdivisions (b) and (c), the
provisions of an agreement for the support of either party are
subject to subsequent modification or termination by court order.
(b) An agreement may not be modified or terminated as to an amount
that accrued before the date of the filing of the notice of motion
or order to show cause to modify or terminate.
(c) An agreement for spousal support may not be modified or
revoked to the extent that a written agreement, or, if there is no
written agreement, an oral agreement entered into in open court
between the parties, specifically provides that the spousal support
is not subject to modification or termination.