In order to maintain an action for a declaration of invalidity in the Tribal Court, the Court must have issued the license and/or performed the marriage.
(Res. 2013-346; Res. 2015-138; Res. 2015-504; Res. 2022-432)
(1) 
Proceedings to declare the invalidity of a marriage shall be commenced and conducted in the manner provided by law for civil cases, except as otherwise specifically provided. A final declaration of invalidity shall restore the parties to the status of unmarried persons.
(2) 
If either party in a proceeding for a declaration of invalidity is a member of the military, the Court may conduct the proceeding in such a way as to be consistent with the Servicemembers Civil Relief Act.
(3) 
The Court Clerk shall provide the parties with a form titled Washington State Certificate of Dissolution, Declaration of Invalidity, or Legal Separation, and once the form is completed, the Court Clerk shall sign it and submit it to the State Registrar of Vital Statistics.
(Res. 2013-346; Res. 2015-138; Res. 2015-504; Res. 2022-432)
A marriage may be declared invalid for any of the following causes existing at the time of marriage:
(1) 
That the party on whose behalf it is sought to have the marriage declared invalid, was under the age of 18 years, and such marriage was contracted without the consent of his or her parents or guardian, or persons having charge of him or her, unless, after attaining the age of consent, such party freely cohabits with the other party to the marriage as spouses;
(2) 
That the former spouse of either party was living, and the marriage with such former spouse was then in force;
(3) 
That either party was of unsound mind, unless such party, after coming into reason, freely cohabited with the other as spouses;
(4) 
That the consent of either party was obtained by fraud, unless such party afterward, with full knowledge of the facts constituting the fraud, freely cohabited with the other as spouses; or
(5) 
That the consent of either party was obtained by force, unless such party afterwards freely cohabited with the other as spouses.
(Res. 2013-346; Res. 2015-138; Res. 2015-504; Res. 2022-432)
An action to obtain a declaration of invalidity of a marriage, for causes mentioned in the preceding section, must be commenced within the periods and by the parties as follows:
(1) 
For causes mentioned in TTC § 4.20.130(1), by the party to the marriage who was married under the age of legal consent, within two years after arriving at the age of consent, or by a parent, guardian, or other person having charge of such minor male or female, at any time before such married minor has arrived at the age of legal consent;
(2) 
For causes mentioned in TTC § 4.20.130(2), by either party during the life of the other, or by such former spouse;
(3) 
For causes mentioned in TTC § 4.20.130(3), by the party injured, or relative or guardian of the party of unsound mind, at any time before the death of either party;
(4) 
For causes mentioned in TTC § 4.20.130(4), by the party injured, within two years after the discovery of the facts constituting a fraud;
(5) 
For causes mentioned in TTC § 4.20.130(5), by injured party, within four years after the marriage.
(Res. 2013-346; Res. 2015-138; Res. 2015-504; Res. 2022-432)
When a marriage is declared invalid for any reason, children born, conceived, or adopted prior to judgment shall be the legitimate children of both parents. The Court may, at the time of declaring the invalidity of a marriage or at any future time, make necessary orders for the custody and support of said child or children as the circumstances and surroundings of the parents may require.
(Res. 2013-346; Res. 2015-138; Res. 2015-504; Res. 2022-432)
Upon a declaration of invalidity being issued, all spousal benefits related to being married to a Tribal member shall cease.
(Res. 2013-346; Res. 2015-138; Res. 2015-504; Res. 2022-432)