(a) A tribunal of this State shall apply Articles 1 through 6 and, as applicable, Article 7, 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.
(c) Article 7 applies only to a support proceeding under the Convention. In such a proceeding, if a provision of Article 7 is inconsistent with Articles 1 through 6, Article 7 controls.