In the case of any experimental, pilot, or demonstration project undertaken under subsection (a) to assist in promoting the objectives of part D of subchapter IV, the project—
(A)#
must be designed to improve the financial well-being of children or otherwise improve the operation of the child support program;
(B)#
may not permit modifications in the child support program which would have the effect of disadvantaging children in need of support; and
(C)#
must not result in increased cost to the Federal Government under part A of such subchapter.