CA Fam Code Section 5700.206

(a)

A tribunal of this state that has issued a child-support order consistent with the law of this state may serve as an initiating tribunal to request a tribunal of another state to enforce:

(1)

the order if the order is the controlling order and has not been modified by a tribunal of another state that assumed jurisdiction pursuant to the Uniform Interstate Family Support Act; or

(2)

a money judgment for arrears of support and interest on the order accrued before a determination that an order of a tribunal of another state is the controlling order.

(b)

A tribunal of this state having continuing jurisdiction over a support order may act as a responding tribunal to enforce the order.