Section 4503 Of Chapter 1. General Provisions From California Family Law Code >> Division 9. >> Part 5. >> Chapter 1.

. If a parent has been ordered to make payments for the support of a minor child, an action to recover an arrearage in those payments may be maintained at any time within the period otherwise specified for the enforcement of such a judgment, notwithstanding the fact that the child has attained the age of 18 years.