ETC Compliance Solutions 2516 E. University Dr., #200 , Phoenix , Arizona 85034 USA About Solutions industries services training Home breadcrumb Companies ETC Compliance Solutions Training ETC - MSHA Underground Miner Annual Refresher Training ETC - MSHA Underground Miner Annual Refresher Training From Focus Areas - MSHA Services 0 Share Share with Facebook Share with Tweeter Share with LinkedIn Required for all underground miners and workers to keep their 5000-23 current. Training must be completed by the end of the same month training was completed the previous year. Class Times: 1 day, 8 am – 5 pm. Customer reviews No reviews were found for ETC - MSHA Underground Miner Annual Refresher Training. Be the first to review! Add your review Publish your review Great! review successfully added!