until the volunteer firefighter reaches the age of 50 years. Each volunteer firefighter who is 50 years of age or older shall submit to a physical examination once every 2 years during his or her employment. As used in this subsection, "physical examination" includes the making of an X-ray film of the volunteer firefighter's lungs but excludes a thorough test of the functioning of his or her lungs.
Service credit which is purchased in a retirement system must not be calculated towards the years of service of a person for the purposes of this section.
may elect to receive the benefits provided under NRS 616C.440 for a permanent total disability.
NRS 617.455