The Division of Elections has issued a new directive that gives displaced voters until 8 p.m. Friday to return email and fax ballots.
They still must request the ballots by 5 p.m. Tuesday.
The new deadline gives county election officials time to verify and process the requests. They must fulfill the requests by noon Friday.
The state decided days ago to allow voters displaced by the storm to cast ballots by fax or email.
Meanwhile, The American Civil Liberties Union of New Jersey is taking Essex County election officials to court over the way special email ballots are being handled.
ACLU spokeswoman Katie Wang says the group has had about 25 complaints from voters who requested email ballots but say they have not received them.
An Essex County election official could not immediately be reached for comment.
The email ballots are usually available only to New Jersey residents living overseas and members of the military. But the state decided Saturday to let voters displaced by Superstorm Sandy use them as well.
Hudson County election officials say they're being flooded with requests for them by people who were not displaced.