N.J. Stat. Ann. § 19:63-19

19. No mail-in ballot shall be rejected or declared invalid because it does not contain all of the names of the candidates or all of the public questions to be voted for in the election district in the election in which it is to be counted. A mail-in ballot shall be counted in determining the result of the election as to any office or public question, if the designation of the office and the name of the candidate for election to the office or the answer to such public question are indicated thereon to demonstrate the voter's choice.