If your jobsite is located where a hospital or a clinic is not accessible in a reasonable amount of time, you must have at least one person capable of first aid at the jobsite at all times. You must make provisions for this or have your employees properly trained. in areas where 911 is not available, the phone numbers of hospitals, physicians and ambulances need to be displayed at a visible location. suitable facilities for quick drenching or flushing of the eyes and body need to be provided within the work area for immediate use. again, check OSHA code for further details, as any other safety information you read here or anywhere else.