NRS 539.455: Payment of assessments before issuance of securities.

1. Prior to the issuance of bonds, notes or certificates of indebtedness authorized for the purpose of such local improvement, any person, firm or corporation owning land upon which a benefit has been assessed for such improvement may pay all or any portion of the benefits so assessed against the land, and, upon such payment, the benefit so assessed shall be discharged to the extent of such payment.

2. No such payment may be made after the issuance of bonds, notes or certificates of indebtedness authorized to be issued in payment of such improvement except as provided by the district.