As used in this division: (a) “Director” means the Director of Industrial Relations. (b) “Department” means the Department of Industrial Relations. (c) “Insurer” includes the State Compensation Insurance Fund and any private company, corporation, mutual association, and reciprocal or interinsurance exchange, authorized under the laws of this state to insure employers against liability for compensation under this part and under Division 4 (commencing with

Section 3201), and any employer to whom a certificate of consent to self-insure has been issued. (d) “Division” means the Division of Occupational Safety and Health. (e) “Standards board” means the Occupational Safety and Health Standards Board, within the department. (f) “Appeals board” means the Occupational Safety and Health Appeals Board, within the department. (g) “Aquaculture” means a form of agriculture as defined in

Section of the Fish and Game Code. (h) “Serious injury or illness” means any injury or illness occurring in a place of employment or in connection with any employment that requires inpatient hospitalization, for other than medical observation or diagnostic testing, or in which an employee suffers an amputation, the loss of an eye, or any serious degree of permanent disfigurement, but does not include any injury or illness or death caused by an accident on a public street or highway, unless the accident occurred in a construction zone. “Serious injury or illness” includes silicosis and silica-related lung cancer. (i) “Serious exposure” means any exposure of an employee to a hazardous substance when the exposure occurs as a result of an incident, accident, emergency, or exposure over time and is in a degree or amount sufficient to create a realistic possibility that death or serious physical harm in the future could result from the actual hazard created by the exposure.