The following errata are available for download by clicking on the icon.

ATC-63 Quantification of Building Seismic Performance Factors, FEMA P-695 Report: Applicable for June, 2009 version of printed report.

ATC-60 Commentary on Wind Code Provisions, Volume 1, First Printing: Applicable for reports sold or distributed before November, 2004.

ATC-38 Database on the Performance of Structures Near Strong-Motion Recordings,1994 Northridge California, Earthquake: Applicable for reports sold or distributed before July 31, 2003.