California requires an employer to immediately report a serious injury or illness, or a work-related death, to Cal/OSHA. 'Immediately' is defined as:

解析

Section 342(a) requires the report immediately, meaning as soon as practically possible but never more than 8 hours after the employer knows, or with diligent inquiry would have known, of the death or serious injury. The 24-hour figure inverts the exception: the extension to 24 hours is available only where the employer can demonstrate exigent circumstances, not as the ordinary rule. The clock runs from the employer's knowledge, not from the incident, so a Saturday injury first learned of on Monday morning is due Monday afternoon. Five days is Labor Code section 6409.1(a)'s separate report to the claims administrator, which the 8-hour call does not replace.