No new petition may be filed, nor may any type of proceeding be initiated, under this article on or after January 1, 1998. It is the intent of the General Assembly that any petitions filed or proceedings initiated on or after January 1, 1998, be governed by the provisions of Article 3 of this chapter, the “Uniform Interstate Family Support Act.” The provisions of this article shall apply only to proceedings pending prior to January 1, 1998.