N.J. Stat. § 26:2-77: Commitment on failure to pay judgment and costs

The court shall cause a defendant who refuses or neglects to pay forthwith the amount of a judgment rendered against him and the costs and charges incident thereto, to be committed to the county jail for a period not exceeding ten days in the case of a first conviction, and in case of a conviction for a second, subsequent or continuing violation, for a period not exceeding thirty days.

L.1939, c. 261, p. 677, s. 1.