Nev. Admin. Code § 477.427
If a written complaint is filed with the State Fire Marshal alleging failure of an agency that performs service to install an internal maintenance tag the State Fire Marshal may require the company who last performed service on the fire extinguisher in question to open the fire extinguisher for examination by the State Fire Marshal or the representative of the State Fire Marshal. If the allegation proves false, the person filing the allegation is responsible for charges incurred in the conducting of the inspection. If the allegation is made by the State Fire Marshal or the representative of the State Fire Marshal, the foregoing procedure is followed, and the company responsible for the unit will bear the cost of recharging the unit if the allegation proves true. The State Fire Marshal will bear the cost of recharging the unit if the allegation proves false.
Nev. Admin. Code § 477.427
NRS 477.030