N.J. Stat. Ann. § 52:28-44

The foregoing compact or agreement, and every clause, matter and thing therein contained, be and the same is hereby adopted, ratified and confirmed as and for the act and deed of the state of New Jersey, and the commissioners of the said state are hereby authorized and empowered on its behalf to execute the same in duplicate, and to deliver one copy thereof to the commissioners of the state of Delaware.