HALF MOON BAY, Calif. -- Coast Guard helicopter pilots Lt. Christian Polyak, Lt. Chris Courtney and Petty Officer Second Class Eric Patricca, and aviation mechanic technician, explain how they conduct rescue procedures to a group of fishermen during a presentation for a commercial fishing boat safety class at Half Moon Bay Airport in Half Moon Bay, March 19, 2012. The Alaska Marine Safety Education Association with the support of the Coast Guard is holding a two-day workshop to help industries to meet new training requirements and regulations. Coast Guard photo by Petty Officer Third Class Caleb Critchfield.