Guardrail Along Steep Riverbank

[Adamian]

I am studying a case involving a steep riverbank in the backyard of a hotel. The landscape appears dangerous, but there are no guardrails. I could not find any requirements in the code regarding this issue. Could you help me find information about installing guardrails along the top of a steep riverbank? The hotel backyard has no restrictions for guests, and the public can easily access the area.
P.S. The project is located in California.

 

[XR250]

I'd like to know this too. Even if it is not code required, it seems like a good idea in this case.