Nev. Rev. Stat. § 282.140
In all cases where official bonds are required from county or township officers, the officer whose duty it is to approve such bonds shall not accept or approve any bonds unless the sureties thereon severally justify before a person authorized to administer oaths, as follows:
[11:135:1865; A 1889, 34; C § 1902; RL § 2878; NCL § 4900]—(NRS A 1975, 340; 1985, 1217)