1. Letter to Frank Borris II, Director of Office of Defects Investigation, Dated 7/28/2014 regarding Petition DP14-001
2. Letter to Adminstrator David J. Friedman, Dated 4/7/2014, regarding Defect Petition on 2003-2010 General Motors
3. "Electronic Crash, Defect and Causation Analyses"
4. Letter to Frank Borris II, Director of Office of Defects Investigation, Dated 9/15/2014 regarding Petition DP14-001, Supplemental #3.
5. Letter to Kathleen Demeter, Director of Office of Defects Investigation, Dated 6/19/1997 regarding Defect Investigation