Suggested citation and version history for: Hanks, T.C., Abrahamson, N.A., Boore, D.M., Coppersmith, K.J, and Knepprath, N.E., 2009, Implementation of the SSHAC Guidelines for Level 3 and 4 PSHAs-- experience gained from actual applications: U.S. Geological Survey Open-File Report 2009-1093, 66 p. [http://pubs.usgs.gov/of/2009/1093/] Version 1.0, May 4, 2009 Initial release online at http://pubs.usgs.gov/of/2009/1093/