Simultaneous proceedings.

RCW 26.21A.115
in effect
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(1) A tribunal of this state may exercise jurisdiction to establish a support order if the petition or comparable pleading is filed after a pleading is filed in another state or a foreign country only if: (a) The petition or comparable pleading in this state is filed before the expiration of the time allowed in the other state or the foreign country for filing a responsive pleading challenging the exercise of jurisdiction by the other state or the foreign country; (b) The contesting party timely challenges the exercise of jurisdiction in the other state or the foreign country; and (c) If relevant, this state is the home state of the child. (2) A tribunal of this state may not exercise jurisdiction to establish a support order if the petition or comparable pleading is filed before a petition or comparable pleading is filed in another state or a foreign country if: (a) The petition or comparable pleading in the other state or foreign country is filed before the expiration of the time allowed in this state for filing a responsive pleading challenging the exercise of jurisdiction by this state; (b) The contesting party timely challenges the exercise of jurisdiction in this state; and (c) If relevant, the other state or foreign country is the home state of the child. (1) A tribunal of this state may exercise jurisdiction to establish a support order if the petition or comparable pleading is filed after a pleading is filed in another state or a foreign country only if: (a) The petition or comparable pleading in this state is filed before the expiration of the time allowed in the other state or the foreign country for filing a responsive pleading challenging the exercise of jurisdiction by the other state or the foreign country; (b) The contesting party timely challenges the exercise of jurisdiction in the other state or the foreign country; and (c) If relevant, this state is the home state of the child. (2) A tribunal of this state may not exercise jurisdiction to establish a support order if the petition or comparable pleading is filed before a petition or comparable pleading is filed in another state or a foreign country if: (a) The petition or comparable pleading in the other state or foreign country is filed before the expiration of the time allowed in this state for filing a responsive pleading challenging the exercise of jurisdiction by this state; (b) The contesting party timely challenges the exercise of jurisdiction in this state; and (c) If relevant, the other state or foreign country is the home state of the child.
Source: WA Statutes (Official Site)URL: https://app.leg.wa.gov/RCW/default.aspx?cite=26.21A&full=trueFetched: 6/29/2026

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