At a remote construction jobsite without a nearby clinic or hospital, Cal/OSHA requires:

Explanation

Section 1512(b) requires each employer to ensure the availability of a suitable number of appropriately trained persons to render first aid, and where several employers share a site they may pool those trained persons provided the pool is large enough for the combined workforce. Subsection (a) makes each employer responsible for ensuring emergency medical services are available to its own employees, and (c) requires at least one first aid kit in a weatherproof container, inspected regularly and kept sanitary. The number required is 'suitable', not universal, which is what (a) overshoots. A paramedic on site (c) is something large projects buy and the standard does not require it. And an agreement with a hospital (d) settles where the injured worker goes, not who treats the wound in the first minutes.