N.J. Stat. Ann. § 40:68-44

Notes, bonds or other evidence of indebtedness issued by a district shall be issued under and in accordance with the Local Bond Law, chapter 2 of Title 40A of the New Jersey Statutes (R.S. 40A et seq.) except that any bonds sold by such district may be issued for a period of up to but not exceeding 20 years. The municipality wherein the district is situate is authorized to purchase at private sale the bonds of any district at no interest or at such interest rate as may be agreed upon by the commissioners of the district and the governing body of the municipality.