N.J. Stat. § 19:23-54
The municipal clerk shall canvass the statements of the district board, not later than the third day after they are received, as far as they relate to the election of members of the county committee of any political party, and, after counting information on write-in votes, vote by mail ballots, and provisional ballots received from the county clerk or board of elections, as appropriate, shall issue a certificate of election to each person shown by the returns to have been so elected.
No person whose name was printed on a primary ballot as a candidate for the county committee shall receive a certificate of election as a member of any other county committee.
When a person whose name was not printed on a primary ballot as a candidate for member of the county committee has been elected as a member of the county committee of more than one political party, the person shall file with the municipal clerk within three days a statement certifying to which political party the person belongs, and a certificate of election shall be issued to such person as a member of the county committee of the political party so certified.
Any person elected as a member of the county committee of any political party whose name was not printed upon the primary ballot and to whom a certificate of election has been issued, shall before the organization of the county committee file with the secretary thereof a written statement certifying that the person is a member of such political party.
The county clerk shall within thirteen days after the primary election certify to the county board two copies of the names and post-office addresses of the persons elected as members of the county committee of the several political parties, together with the ward, district or unit which they respectively represent.
N.J.S. § 19:23-54