Which of the following can be authenticated by a non-licensed employee?

The correct choice is that rabies certificates can be authenticated by a non-licensed employee. In many veterinary practices, non-licensed staff can handle specific administrative tasks, which may include processing rabies certificates. These documents typically serve as proof of vaccination for rabies in animals and are often required by law for pet travel and local regulations.

The authority to authenticate or sign off on most health documents generally falls to licensed professionals, such as veterinarians and veterinary technicians, which explains why options that suggest all health documents or emergency medical papers can be authenticated by non-licensed employees are inaccurate. Veterinarian's personal notes are not official documents that require authentication, but are rather internal records, which further clarifies why those also do not fit in the category of what a non-licensed employee can authenticate.