This is usually the priciest part of a commercial truck insurance policy. It pays to shop around and find the truck insurance companies offering the most reasonable prices for this coverage.
The minimum amount of primary liability insurance is established by the FMSCA. For trucks over 10,000 pounds GVWR you will need $750,000 for liability. Most trucks hauling nearly all commodities are required to have a minimum of $750,000 of auto liability coverage.