Nevada Revised Statutes Title 27. Public Property and Purchasing § 333.4611. Regulations establishing standards for devices that use electricity, natural gas, propane or oil; exceptions

(a) No items in a given class of appliances, equipment, lighting or other devices have been evaluated to determine whether they are eligible to receive the Energy Star label or have been designated by the Federal Government to meet the requirements established pursuant to 48 C.F.R. § 23.203; or

(b) The purchase of new appliances, equipment, lighting or other devices that have received the Energy Star label would not be cost-effective in an individual instance, comparing the cost of the item to the cost of the amount of energy that will be saved over the useful life of the item.