N.J. Stat. § 52:34-10.1
A communication relative to any advertised procurement by a State agency, as defined in section 11 of P.L. 2005, c. 336(C.52:34-10.11),shall be limited to the individual or entity designated by the agency as responsible for the procurement. An officer or employee of a State agency who communicates with a bidder, or potential bidder, or any person acting on behalf thereof, for a public contract regarding that contract shall maintain a written record of each communication from the date of the advertisement for bids to the date the contract is awarded. The State agency shall retain the record of each communication for the term of the contract and at least three years thereafter, or such longer period as may be established in the agency's record retention schedule.
N.J.S. § 52:34-10.1