A general contractor on a multi-employer construction site is generally responsible for:

Explanation

Cal/OSHA's multi-employer worksite policy identifies four roles and cites accordingly: the CREATING employer that brought the hazard into existence, the EXPOSING employer whose workers are exposed to it, the CORRECTING employer engaged to fix it, and the CONTROLLING employer - typically the general contractor - with general supervisory authority over the site, including the power to correct a hazard or to require its correction. A general contractor can therefore be cited for a hazard created by a subcontractor and exposing that subcontractor's employees. Option (a) is the narrow view the policy exists to defeat, and option (b) is the same view stated by the sub. Option (c) goes too far the other way: the controlling employer's duty is measured by reasonable care given its authority and the size of the site, not by strict liability for everything inside the fence.