"High-level disinfection" means a type of disinfection which destroys all microorganisms with the exception of high levels of bacterial spores. Such disinfection may be accomplished through the use of processes that include, without limitation, boiling items in water, steaming items in water and soaking items in chemical disinfectants.
Nev. Admin. Code § 449.9731
NRS 441A.120, 449.0302