Tetanus and diphtheria immunization? ?

Question

I'm 16 and was notified that I needed to be vaccinated against diphtheria and tetanus. I had shots for these when I was very small, do I need them again? Can you provide me with a site that tells me the immunization schedule for this?

Answer 1

I'm pretty sure a tetanus lasts about 10 years, not sure about the other.