This is a ¾ ton truck with a tandem axle gooseneck, a common farm vehicle combination across the U.S. that does not require a CDL to drive. 
This is a one ton truck with the same trailer and load as above, another common farm vehicle combination, yet the driver would need a CDL because the truck has a slightly larger GVWR. Our bill aims to provide parity with ¾ ton and one ton vehicles. 
This is a one ton truck with a large gooseneck camper that has a larger GVWR than the trailers above. There are no federal requirements for a CDL because it is a recreational vehicle rather than one used for business.
Senate lawmakers Tuesday introduced the Covered Farm Vehicle Modernization Act. The legislation expands and modernizes the exemptions for Covered Farm Vehicles to reflect the variety of vehicles commonly used by today’s farmers and ranchers.
The bill adjusts exemption thresholds and removes the extra regulatory red tape regarding Department of Transportation registration and fuel tax licensing requirements that have little to do with vehicle safety, according to lawmakers.
Senate Republican Roger Marshall of Kansas introduced the bill with Georgia Democrat Jon Ossoff. Marshall says the legislation “ultimately allows folks to legally pull a gooseneck trailer with their pickup truck without jumping through hoops to obtain a for-hire commercial driving license.”
The bill expands exemptions for Covered Farm Vehicles to allow farm vehicles with a gross vehicle weight or Gross Vehicle Weight Rating under 36,001 pounds to travel across state lines with the same exemptions currently granted to farm vehicles under 26,001 pounds.
(From the National Association of Farm Broadcasters)