In a rerun election, if no ballot choice receives a majority of the valid ballots cast, and there are no unresolved challenged ballots, and all eligible voters have cast ballots, then the Director of Representation may certify the results of the election indicating that no exclusive representative has been chosen.
N.J. Admin. Code § 19:11-10.6
See: 27 New Jersey Register 2544(b), 27 New Jersey Register 3381(a).