Troy Rentz, Commercial Fishing Vessel Alternate Compliance Coordinator for the 13th Coast Guard District, instructs two National Marine Fisheries Service (NMFS) observers on the appropriate use of a hydrostatic release for a life raft at the National Oceanic and Atmospheric Administration (NOAA) Northwest Regional Office here, Jan. 13, 2010. Annually NMFS observers attend a refresher course to reinforce the survival training they initially received. U.S. Coast Guard photo Petty Officer Colin White.