Nevada Revised Statutes 704A.150 – ‘Underground service district’ defined
‘Underground service district’ means an area in which electric and communication facilities are to be placed underground, exclusive of:
1. Any lines or facilities used or intended to be used for the transmission of electric energy at nominal voltages in excess of 300,000 volts or having a circuit capacity in excess of 12,000 kilovolt amperes.
2. Facilities used or intended to be used for the transmission of intelligence by microwave or radio.
3. Facilities such as transformers, pull boxes, service terminals, pedestal terminals, splice closures, apparatus cabinets and similar facilities which normally are above the surface in areas where service lines are underground in accordance with standard underground practices.
4. On-the-ground facilities attached to overhead facilities which are used to connect an underground system to overhead facilities.