Today I finished my recertification/training to be a certified occupational hearing conservationist. CAOHC requires all their OHCs to be recertified every five years. I received my initial training in 1996. The course director was Timothy Swisher. He was a good instructor in 1996 and a great instructor in 2013. I enjoyed learning some new things this year.
If you have a noisy habit, think about using hearing protection at home. Personal hearing protection is not just for the workplace.