Mo. Rev. Stat. § 454.1512
Application of act to resident of foreign country and foreign support ...
454.1512. Application of act to resident of foreign country and foreign support proceeding. — (a) A tribunal of this state shall apply Articles 1 through 6, sections 454.1500 to 454.1677 , and, as applicable, Article 7, sections 454.1680 to 454.1716 , to a support proceeding involving:
(1) a foreign support order;
(2) a foreign tribunal; or
(3) an obligee, obligor, or child residing in a foreign country.
(b) A tribunal of this state that is requested to recognize and enforce a support order on the basis of comity may apply the procedural and substantive provisions of Articles 1 through 6, sections 454.1500 to 454.1677 .
(c) Article 7, sections 454.1680 to 454.1716 , apply only to a support proceeding under the Convention. In such a proceeding, if a provision of Article 7, sections 454.1680 to 454.1716 , is inconsistent with Articles 1 through 6, sections 454.1500 to 454.1677 , Article 7, sections 454.1680 to 454.1716 , controls.
(L. 2011 H.B. 260) Effective 6-15-16, see § 454.1728