Cal. Health & Safety Code § 1799.300
(b) For purposes of this chapter, the following definitions apply:
(4) “Critical incident stress” means the acute or cumulative psychological stress or trauma that emergency ambulance personnel may experience in providing emergency services in response to a critical incident. The stress or trauma is an unusually strong emotional, cognitive, behavioral, or physical reaction that may interfere with normal functioning and could lead to post-traumatic stress injuries, including, but not limited to, one or more of the following:
(5) “Emergency ambulance employee” means a person who meets both of the following requirements:
(6) “Emergency ambulance provider” means an employer that provides ambulance services, but not including the state, or any political subdivision thereof, in its capacity as the direct employer of a person meeting the description contained in subparagraph (A) of paragraph (5).
(A) “Emergency ambulance provider” does not include a provider that satisfies both of the following criteria:
(8) “Peer support services” means authorized peer support services provided by a peer support team member to emergency ambulance employees and their immediate families affected by a critical incident or the cumulative effect of witnessing multiple critical incidents. Peer support services assist those affected by a critical incident in coping with critical incident stress and mitigating reactions to critical incident stress, including reducing the risk of post-traumatic stress and other injuries. Peer support services may include any of the following: