Debt Service
The amount of principal and interest required to be paid on an issue of bonds.
A Maturity schedule in which the combined annual amount of Principal and Interest payments remains relatively constant over the life of a Bond Issue. Some state laws require Level Debt Service for certain transactions.
The amount of principal and interest required to be paid on an issue of bonds.

A supplement to an outstanding indenture, entered into pursuant to the terms of an outstanding indenture and delivered in connection with the issuance of additional bonds, to cure an inconsistency or formal defect in the Indenture or to amend the indenture in some manner.