N.J. Stat. Ann. § 58:10A-43

The Department of Environmental Protection shall establish compliance schedules for municipal treatment works. The compliance schedules shall include deadlines for submittal of the permit application or applications for the chosen land-based sludge management method or methods, awarding of the construction contract, commencement of construction, and completion of construction. The department shall act either to approve, conditionally approve or deny permit applications within six months of their submittal.