To amend title 49, United States Code, to provide certain exemptions to drivers of intrastate commercial motor vehicles engaged in agricultural purposes, and for other 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 weight limits of commercial motor vehicles with respect to federal commercial motor vehicle safety laws to apply such laws to vehicles having a gross vehicle weight rating or gross vehicle weight of at least 26,001 pounds, whichever is greater (currently, applies to such vehicles having 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, but in any event not less than a gross vehicle weight rating of 10,001 pounds).