Office of the Federal Coordinator for Meteorological Research, 2007, National volcanic ash operations plan for aviation: National Oceanic and Atmospheric Administration, Office of the Federal Coordinator for Meteorological Research FCM-P35-2007, 47 p., available at http://www.ofcm.gov/p35-nvaopa/fcm-p35.htm
Citation Updated: 2010-04-23 23:16:35