"Fail-safe characteristics" means design features which cause beam port shutters to close or which otherwise prevent emergence of the primary beam upon the failure of a safety or warning device.
Nev. Admin. Code § 459.646
NRS 459.201
"Fail-safe characteristics" means design features which cause beam port shutters to close or which otherwise prevent emergence of the primary beam upon the failure of a safety or warning device.
Nev. Admin. Code § 459.646
NRS 459.201