Section 110.542 - Proceedings under this chapter(1) Except as otherwise provided in this chapter, ORS 110.542 to 110.591 apply to all proceedings under this chapter.(2) An individual petitioner or a support enforcement agency may initiate a proceeding authorized under this chapter by filing a petition in an initiating tribunal for forwarding to a responding tribunal or by filing a petition or a comparable pleading directly in a tribunal of another state or a foreign country that has or can obtain personal jurisdiction over the respondent.