Section 3-304. Duties of initiating tribunal. (a) Upon the filing of a petition authorized by this chapter, an initiating tribunal of the commonwealth shall forward three copies of the petition and its accompanying documents:

(1) to the responding tribunal or appropriate support enforcement agency in the responding state; or

(2) if the identity of the responding tribunal is unknown, to the state information agency of the responding state with a request that they be forwarded to the appropriate tribunal and that receipt be acknowledged.

(b) If a responding state has not enacted the Uniform Interstate Family Support Act or a law or procedure substantially similar to said act, a tribunal of the commonwealth may issue a certificate or other document and make findings required by the law of the responding state. If the responding state is a foreign jurisdiction, the tribunal may specify the amount of support sought and provide other documents necessary to satisfy the requirements of the responding state.