Del. Code tit. 13, §§ 6-903

This chapter applies to proceedings begun on or after July 1, 2015, to establish a support order or determine parentage of a child or to register, recognize, enforce, or modify a prior support order, determination, or agreement, whenever issued or entered. Any determination of support or nonsupport made under the law of this State prior to July 1, 2015, remains in force and effect.