Kokua Line: How do I claim jury duty exemption?

Question: I read in your column a few years ago that if you’re 80 years old you can be exempted from jury duty. I received a jury notice about two months ago for jury duty reporting July 25. Luckily when I called the number given, the case had been settled and I didn’t have to report. Whom can I contact to let them know that I’m already 80 years old and therefore exempt?