California Family Code
Family Code section 4333
CHAPTER 3. Spousal Support Upon Dissolution or Legal Separation [4330 - 4339]
( Chapter 3 enacted by Stats. 1992, Ch. 162, Sec. 10. )
An order for spousal support in a proceeding for dissolution of marriage or for legal separation of the parties may be made retroactive to the date of filing the notice of motion or order to show cause, or to any subsequent date.