Two years ago I imported my cat from America. Before I looked into it, I thought that I would have to quarantine her for 3 months. Luckily this wasn’t the case. Essentially, what I had to do in short (for the detailed version please see here at the Austrian Embassy’s website.
1. Get the cat microchipped. A lot of vets have varying opinions on whether to inject a topical pain killer into the area for insertion of the microchip, since the width of the microchip needle is much thicker than normal needles. The vet I went to in Texas told me that it was not necessary, and just prolonged the stress of the cat, so I went with his expert advice. From the reaction of poor Katzie (eyes bugging out in surprise, and what I can only imagine was pain), I regret listening to the vet. I should have gone with my gut and given her the painkiller. After insertion of the microchip she was very scared (another indication that it hurt her).
In theory, the microchip is supposed to be scanned at the border control upon your first entry into the EU to verify it is the same animal as described in the paperwork, but in my case they didn’t do it.
2. Rabies shot after microchip insertion: The rabies shot had to be given after the microchip was implanted (even if only a few seconds). I thought it was a dumb rule at the time, but what can you do? The rabies shot has to be given more than 21 days before entry into the EU, otherwise it is not valid — unless you have proof that the animal has had routine rabies shots at regular intervals.