As an employer, what am I required to provide in the way of medical services and first aid?

Section 3400 of the General Industry Safety Orders requires that the employer "ensure" the ready availability of medical personnel for advice and consultation "on matters of industrial health or injury."

For most places of employment, the presence of an infirmary, clinic, hospital or emergency service providers, such as the fire department and available emergency medical technicians, in near proximity to the workplace is sufficient to meet this requirement. When these facilities or persons are not in the near proximity, then a person or persons shall be "adequately" trained to render first aid.