Except as otherwise provided in subsections (c) and (d) of this section, a tribunal of this State shall recognize and enforce a foreign support agreement registered in this State. An application or direct request for recognition and enforcement of a foreign support agreement must be accompanied by: a complete text of the foreign support agreement; and a record stating that the foreign support agreement is enforceable as an order of support in the issuing country. A tribunal of this State may vacate the registration of a foreign support agreement only if, acting on its own motion, the tribunal finds that recognition and enforcement would be manifestly incompatible with public policy. In a contest of a foreign support agreement, a tribunal of this State may refuse recognition and enforcement of the agreement if it finds: recognition and enforcement of the agreement is manifestly incompatible with public policy; the agreement was obtained by fraud or falsification; the agreement is incompatible with a support order involving the same parties and having the same purpose in this State, another state, or a foreign country if the support order is entitled to recognition and enforcement under this subtitle in this State; or the record submitted under subsection (b) of this section lacks authenticity or integrity. A proceeding for recognition and enforcement of a foreign support agreement shall be suspended during the pendency of a challenge to or appeal of the agreement before a tribunal of another state or a foreign country.