| 2009 | Topic |
|---|---|
| Feb 13 | Brief on the likely adverse safety consequences of state regulation of greenhouse gas; IIHS also expressed concern about the trend among automobile manufacturers toward using advanced engine technology to increase horsepower rather than improve fuel economy |
| 2008 | Topic |
| March 21 | Brief on the likely adverse safety consequences of state regulation of greenhouse gas |
| 2006 | Topic |
| July 3 | Brief objecting to the Federal Motor Carrier Safety Administration's permitting drivers of commercial motor vehicles to drive up to 11 hours a day and allowing them to restart their weekly hours-of-service after 34 hours off duty |
| 2003 | Topic |
| December 11 | Brief objecting to the Federal Motor Carrier Safety Administration's 2003 final rule on hours-of-service for drivers of commercial motor vehicles |
| September 18 | Brief on the importance of independent vehicle ratings program in promoting vehicle safety |
| 2002 | Topic |
| December 23 | Brief supporting the National Highway Traffic Safety Administration's 2001 final rule on advanced airbags |