California Code, Health and Safety Code - HSC § 1799.105

(a) A poison control center which (1) meets the minimum standards for designation and operation established by the authority pursuant to Section 1798.180, (2) has been designated a regional poison control center by the authority, and (3) provides information and advice for no charge on the management of exposures to poisonous or toxic substances, shall be immune from liability in civil damages with respect to the emergency provision of that information or advice, for acts or omissions by its medical director, poison information specialist, or poison information provider as provided in subdivisions (b) and (c).

(b) Any poison information specialist or poison information provider who provides emergency information and advice on the management of exposures to poisonous or toxic substances, through, and in accordance with, protocols approved by the medical director of a poison control center specified in subdivision (a), shall only be liable in civil damages, with respect to the emergency provision of that information or advice, for acts or omissions performed in a grossly negligent manner or acts or omissions not performed in good faith. This subdivision shall not be construed to immunize the negligent adoption of a protocol.

(c) The medical director of a poison control center specified in subdivision (a) who provides emergency information and advice on the management of exposures to poisonous or toxic substances, where the exposure is not covered by an approved protocol, shall be liable only in civil damages, with respect to the emergency provision of that information or advice, for acts or omissions performed in a grossly negligent manner or acts or omissions not performed in good faith. This subdivision shall neither be construed to immunize the negligent failure to adopt adequate approved protocols nor to confer liability upon the medical director for failing to develop or approve a protocol when the development of a protocol for a specific situation is not practical or the situation could not have been reasonably foreseen.