Aloha to our Hawai’i Class C UST operators. We’re starting to get calls about the annual refresher requirements by the HI DOH so we know word is starting to get out. Any questions about refresher requirements just give us a shout. We’re Pacific Time you should be able to catch a live person most days. Call 866-301-8265 or email us. Class A/B operators must refresh every five years so you ABs out there have some time.