N.J. Stat. § 40:56-36: Separate account for assessments; sinking fund

All assessments as collected shall be immediately placed in an account to be known as "local improvement assessment account" . Such moneys shall be used only to pay indebtedness incurred for such improvements whether by temporary or permanent certificates, notes or bonds. Whenever a sinking fund is maintained, upon a vote of the governing body such moneys as collected shall be paid into such sinking fund and kept in a similarly designated account and used for the purposes herein described.