Driver selection tests and measurementR. R. Knipling, Gene Bergoffen · First published 2011Open the Tome
Operator Drug- and Alcohol-Testing Across ModesDary D. Fiorentino, Randi Shannahan, Gene Bergoffen, Transportation Research Board Staff National Research Council (U.S.), Commercial Truck and Bus Safety Synthesis Program (U.S.) Staff · First published 2011Open the Tome
Safety Management in Small Motor CarriersR. R. Knipling, Kenna C. Nelson, Gene Bergoffen, Stephen V. Burks, Transportation Research Board Staff National Research Council (U.S.) · First published 2011Open the Tome
Older commercial drivers, do they pose a safety risk?Gene Bergoffen · First published 2010Open the Tome
Commercial motor vehicle carrier safety management certificationGene Bergoffen · First published 2007Open the Tome