Final answer:
In most cases, a person needs a valid driver's license to operate a farm tractor on the highway, but some exceptions may apply depending on local regulations and specific conditions.
Step-by-step explanation:
According to traffic laws in most jurisdictions, a person generally needs a valid driver's license to operate a farm tractor on a public highway. However, there may be some exceptions or specific rules depending on local and state regulations. It is important to consult the specific laws and regulations in the relevant jurisdiction to determine the requirements.
For example, in some states, farm tractors may be exempt from certain driver's license requirements if they are being used for agricultural purposes and are operated within certain speed limits or within a certain distance from the farm. These exemptions may only be temporary and have specific conditions.
To ensure compliance and safety, it is crucial to familiarize oneself with the local traffic laws and regulations before operating a farm tractor on the highway.