Code (Internal Revenue)
The Internal Revenue Code of 1986, as amended and in effect on the date of issuance of the bonds.
An accounting estimate of the number of years it is likely for an asset to remain in service for the purpose of cost-effective revenue generation. The Internal Revenue Service (IRS) employs Useful Life for various purposes applicable to Tax-Exempt Bonds.

The Internal Revenue Code of 1986, as amended and in effect on the date of issuance of the bonds.