N.J. Stat. § 34:13A-63
Authorization cards or showings of interest submitted to the commission for purposes of conducting an election to select a majority representative or certifying an employee organization as the exclusive majority representative based on a majority of employees in the unit signing authorization cards or a petition, may bear the electronic signature of the employee, as the term electronic signature is defined in section 2 of P.L. 2001, c. 116(C.12A:12-2), provided that the petitioner provides to the commission verification as to the authenticity of the electronic signature, such as an email from the employee signatory confirming the authenticity of their signature or such other verification deemed acceptable by the commission. Facsimile transmissions and email will be accepted in lieu of originals for authorization cards and showings of interest in certification cases; however, all original filings and submissions shall be retained by the petitioner and the originals shall be produced upon request of the commission.
N.J.S. § 34:13A-63