Stepchildren are not considered legal dependents unless a court has found that the stepparent has a legal responsibility for the stepchildren. When considering the use of this adjustment, the following principles shall apply:
(1) this adjustment shall be used only if requested by a serial-family parent and the income, if any, of the other parent of the secondary family is provided to the court;
Ref to PDF file w/homepage:
http://www.judiciary.state.nj.us/csguide/app9a.pdf
Child Support Guidelines