The purpose of this Subchapter is to provide rules for all administrative hearings of child support and other matters under the jurisdiction of the Office of Administrative Hearings: Child Support, as defined in this Subchapter.  This Subchapter complies with Section 237 of Title 56 of the Oklahoma Statutes to administer the Oklahoma Department of Human Services statewide plan for child support enforcement under Title IV, Part D, of the Social Security Act, Sections 651 through 669B, of Title 42 of the United States Code, Chapter III of Title 45 of the Code of Federal Regulations, Sections 237 through 240.23 of Title 56 of the Oklahoma Statutes, applicable provisions of Titles 10, 43, and 68 of the Oklahoma Statutes, and all other relevant state and federal laws.  Nothing in this Subchapter shall be construed to limit the rights of persons who are not represented by counsel to submit pleadings on their own behalf.