To amend title 49, United States Code, to provide certain exemptions to drivers of intrastate commercial motor vehicles engaged in agricultural purposes.

Amends commercial motor vehicle safety requirements to exempt drivers of intrastate commercial vehicles engaged in agricultural-related activities from certain federal commercial motor vehicle and operator regulations.

Revises the definition of the term "commercial motor vehicle" with respect to federal commercial motor vehicle laws, including to mean a motor vehicle used in commerce to transport passengers or property that has a gross vehicle weight rating or gross vehicle weight of at least 26,001 pounds (under current law, a motor vehicle used in commerce to transport passengers or property that has a gross vehicle weight rating or gross vehicle weight of at least 26,001 pounds, whichever is greater, or a lesser gross vehicle weight rating or gross vehicle weight the Secretary of Transportation prescribes by regulation, but not less than a gross vehicle weight rating of 10,001 pounds).