This bill establishes regulations for the repair of diesel exhaust fluid (DEF) systems integrated into farm equipment, ensuring that original farm equipment manufacturers (OEMs) provide necessary diagnostic and repair information, replacement parts, and diagnostic tools to interest holders—those who own or lease the equipment. The bill mandates that OEMs must make these resources available to interest holders on the same terms as they do for authorized repair providers in the same region. Additionally, it prohibits OEMs from requiring interest holders to purchase diagnostic information if it is offered to repair providers at more favorable terms, and it ensures that any agreement waiving rights under this bill is void.

The bill also outlines the enforcement mechanisms, placing the responsibility on the attorney general to adopt rules and enforce compliance. Violations of the bill are classified as unfair or deceptive trade practices, allowing for civil actions against manufacturers, including potential civil penalties of up to $40,000 per violation. Importantly, the bill protects trade secrets and does not require OEMs to disclose proprietary information, while also ensuring that warranty provisions remain intact. Overall, the legislation aims to enhance repair accessibility and fairness for farmers using diesel-powered equipment with DEF systems.