Family Code section 5700.603

(a)

A support order or income-withholding order issued in another state or a foreign support order is registered when the order is filed in the registering tribunal of this state.

(b)

A registered support order issued in another state or a foreign country is enforceable in the same manner and is subject to the same procedures as an order issued by a tribunal of this state.

(c)

Except as otherwise provided in this part, a tribunal of this state shall recognize and enforce, but may not modify, a registered support order if the issuing tribunal had jurisdiction.

Source: Section 5700.603, https://leginfo.­legislature.­ca.­gov/faces/codes_displaySection.­xhtml?lawCode=FAM§ionNum=5700.­603.­ (updated Jan. 1, 2016; accessed Nov. 10, 2025).

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Verified:
Nov. 10, 2025

§ 5700.603's source at ca​.gov