N.J. Stat. § 19:53B-14
In counting the emergency ballots, the board shall deem void all emergency ballots which are wholly blank, or on which more names have been marked for every office than there are persons to be elected to the office, and on which both "Yes" and "No" have been marked upon every public question.
No emergency ballot which shall have, either on its face or back, any mark, sign, erasure, designation or device whatsoever, other than that which is permitted by this amendatory and supplementary act, P.L. 1992, c.3 (C.19:53B-1 et al.), by which the emergency ballot shall be distinguished from another emergency ballot shall be declared void unless the district board canvassing those emergency ballots, or the county board, judge of the Superior Court or other judge or officer conducting the recount thereof, shall be satisfied that the placing of the mark, sign, erasure, designation or device upon the emergency ballot was intended to identify or distinguish the emergency ballot.
No emergency ballot shall be declared invalid by reason of the fact that the mark made with ink or the mark made with lead pencil appears other than black.
No emergency ballot cast for any candidate shall be invalid by reason of the fact that the name of that candidate may be misprinted, or the Christian name or the initials of the candidate may be omitted.
No emergency ballot cast for any candidate shall be invalid by reason of the use of any label permitted by this amendatory and supplementary act, P.L. 1992, c.3 (C.19:53B-1 et al.) on which the title of office may be printed or the name of the candidate may be misprinted or part of the Christian name or surname or the initials of the candidate may be omitted, or because the voter in writing the name of the candidate may misspell the name or omit part of the Christian name or surname or the initials of the candidate.
No emergency ballot shall be declared void or invalid, by reason of having a cross x, plus + or check / appearing in a square provided for a blank space, or a space wherein no name is printed.
N.J.S. § 19:53B-14