How many times can you receive the rabies vaccination throughout your life? i've heard twice but is that true?

Rabies vaccine: Do not know that there is a limit in the numbers of times you can receive this, but a vaccine, like any medicine, is capable of causing severe allergic reactions. The risk of a vaccine causing serious harm, or death, is extremely small. Serious problems from Rabies Vaccine are very rare. Revaccination will probably only heighten immunity.