N.J. Stat. Ann. § 40:76-20

The county board of election shall sit in some public place in the municipality where the special election is to be held, on at least one day in the week prior to the day of the special election. It may, by order, grant transfers and place upon the registry books the names of those persons whose names were not on the registry books of the last preceding general election, but who would be entitled to be registered if the special election were in fact a general election.