The Department of Transportation (DOT) legislates the regulations for the ground transportation of dangerous goods. The DOT regulates shipping hazardous materials in the 49 CFR, Parts 100-185. The 49 CFR is available in various formats including the Early 49 CFR, DOT Government 49 CFR, MasterRegs 49 CFR and GSI 49 CFR. Labelmaster offers DOT hazmat books to educate and inform shippers on the safe and secure shipping of hazardous materials by ground.