N.J. Stat. § 51:1-98

Any deviation from the standards prescribed in this chapter, either in weights or measures or in containers in which any commodity is sold or offered for sale, which shall exceed by more than three times the allowable error determined by the state superintendent in accordance with the provisions of sections 51:1-29 and 51:1-57 of this title, shall be subject to a penalty double that otherwise provided. Should such deviation exceed by more than five times such allowable error, the penalty shall be three times that otherwise provided. No penalty shall be imposed for allowable deviations, nor for any deviation which shall be to the disadvantage of the owner of said weight, measure or container.