Will Falconer, DVM Moderator
Hi M,
If your breed has a propensity for DM, you (and your trusted vet) are putting them at great and unnecessary risk by repeating vaccinations for nine years. You'll find efficacy lacking in this from immunologists' understanding, and safety concerns are spread all over this site, including many of the comments right here on this piece.
I'd suggest that, rather than being terrified over other people's choices for their dog's health care, you'd do better to place that concern over this outdated practice for your own dogs.
Just as in people and their children, this is a matter of learning all you can about risks vs benefits of vaccinations and deciding wisely what's best for you and your charges. Complying with laws may or may not be part of intelligent people's decisions.