It's just too risky for me. It's not just my state that takes these rabies vaccine laws seriously. My area is practically vigilante about it. I can't risk my cats being subject to a 6 month quarantine, or being killed, because they aren't up to date on their shots, should they bite someone, or bite me, or another bat gets into the house.
SK, for example is a biter under stress. If she bit someone, even at the clinic where they know her, and she was not up to date on vaccinations she would have to live in a stainless steel cage for 6 months. That would put her over the edge into insanity. While I would love to avoid the rabies vaccine for her, because of her health issues, that quarantine is a bigger risk, in my opinion, so she, and the other two, will have to abide by the laws, and the PureVax rabies vaccine is still only approved as a one year shot.
Other than the initial kitten series and one booster a year later of the FVRCP (also known as distemper vaccine) vaccine, the only vaccine they get is the PureVax rabies, but it is still an annual vaccine.
My vet, like me, would like to see the laws changed. But the pharmaceutical companies have so much clout, it isn't likely to happen any time soon. Imagine the revenue they will lose, when PureVax goes to a three or even five year shot.