Within twenty calendar days of completing the determinations required in WAC 388-14A-7700 and, if appropriate, receipt of any necessary information needed to process the case, the division of child support:

(1) Asks the appropriate intrastate tribunal, or refers the case to the appropriate responding state IV-D agency, for a determination of the controlling order and a reconciliation of arrearages if such a determination is necessary; and

(2) Refers any intergovernmental IV-D case to the appropriate state central registry, Tribal IV-D program, or central authority of a country for action, if one-state remedies are not appropriate.