Base value shall mean the assessed valuation of historically significant real property in the assessment year the preliminary certificate of rehabilitation was issued last certified by the assessor pursuant to Neb. Rev. Stat. Section 13-509 or as finally determined if appealed.
Historically significant property shall mean real property that is:
Final Certificate of Rehabilitation shall mean a certificate issued by the State Historic Preservation Officer determining that the rehabilitation of a property meets the Standards for Rehabilitation described in 36 C.F.R. 67.7, as such regulation existed on January 1, 2005.
Preliminary Certificate of Rehabilitation shall mean a certificate issued by the State Historic Preservation Officer determining that a property is qualified for historic preservation valuation, the proposed rehabilitation meets the Standards for Rehabilitation described in 36 C.F.R. 67.7, as such regulation existed on January 1, 2005 and the proposed rehabilitation is a substantial rehabilitation.
Substantial Rehabilitation shall mean interior or exterior rehabilitation work that preserves the historically significant real property in a manner that significantly improves its condition and costs an amount equal to or greater than twenty-five percent of the assessed valuation of the property as certified by the assessor and contained in the application for a preliminary certificate of rehabilitation filed with the State Historic Preservation Officer.
350 Neb. Admin. Code, ch. 23, § 001