Nev. Rev. Stat. § 271.631
“Water efficiency improvement project” defined.
“Water efficiency improvement project” means an improvement to real property, facilities or equipment, and all necessary appurtenances and incidentals thereto, with a useful life of not less than 10 years that is designed to:
1. Reduce the water consumption of the real property; or
2. Conserve or remediate water, in whole or in part, on the real property.
(Added to NRS by 2021, 3243)