NRS 361.189
Parceling system.
1.
Not later than July 1, 1979, and thereafter:(a)
All land in this State must be legally described for tax purposes by parcel number in accordance with the parceling system prescribed by the Department. The provisions of NRS 361.190 to 361.220, inclusive, must remain in effect until each county has established and implemented the prescribed parceling system.(b)
Each county shall prepare and possess a complete set of maps drawn in accordance with such parceling system for all land in the county.2.
The Department may assist any county in preparing the maps required by subsection 1, if it is shown to the satisfaction of the Department that the county does not have the ability to prepare such maps. The county shall reimburse the Department for its costs from the county general fund. The Department may employ such services as are needed to carry out the provisions of this section.3.
The county assessor shall ensure that the parcels of land on such maps are numbered in the manner prescribed by the Department. The county assessor shall continually update the maps to reflect transfers, conveyances, acquisitions or any other transaction or event that changes the boundaries of any parcel and shall renumber the parcels or prepare new map pages for any portion of the maps to show combinations or divisions of parcels in the manner prescribed by the Department. The maps must readily disclose precisely what land is covered by any particular parcel number in the current fiscal year.4.
The Department may review such maps annually to ensure that they are being properly updated. If it is determined that such maps are not properly updated, the Department may order the board of county commissioners to employ forthwith one or more qualified persons approved by the Department to prepare the required maps. The payment of all costs incidental thereto is a proper charge against the funds of the county, notwithstanding such funds were not budgeted according to law.5.
Such maps must at all times be available in the office of the county assessor. All such maps must be retained by the county assessor as a permanent public record.6.
Land must not be described in any deed or conveyance by reference to any such map unless the map is filed for record in the office of the county recorder of the county in which the land is located.7.
A county assessor shall not reflect on the tax roll a change in the ownership of land in this State unless the document that conveys the ownership of land contains a correct and complete legal description, adequately describing the exact boundaries of the parcel of land. A parcel number assigned by a county assessor does not constitute a correct and complete legal description of the land conveyed.
Source:
Section 361.189 — Parceling system., https://www.leg.state.nv.us/NRS/NRS-361.html#NRS361Sec189.