(a) The underlying purposes of this article are: 1104 19-11-3 (1) To provide that public assistance to needy children is a supplement to the contribution of the responsible parents; (2) To provide for a determination that a responsible parent is able to support his children; and (3) To provide for the enforcement of an able parent’s obligation to furnish support. (b) This article shall be liberally construed to promote its underlying purposes. History. Ga. L. 1973, p. 192, § 2.