Is there a union or association to which vet employees must can belong to?

No, there is no union or association that veterinary employees are required to belong to.

While there are unions and associations for veterinary professionals, such as:

* The National Veterinary Technician Association (NVTA)

* The American Veterinary Medical Association (AVMA)

* The American Animal Hospital Association (AAHA)

Membership in these organizations is voluntary.

It's important to note that some states do allow for unionization of veterinary employees, but it's not a requirement.

Here's a summary:

* No mandatory union or association for vet employees.

* Voluntary organizations exist for vet professionals.

* Unionization is possible in some states, but not mandatory.

If you are interested in joining a veterinary organization, consider your specific interests and goals. These organizations can offer professional development, networking opportunities, and advocacy for the veterinary profession.