IA HF2529

Requires original farm equipment manufacturers to provide documentation, tools, parts, and embedded software necessary for repairing diesel exhaust fluid (DEF) systems integrated into farm equipment to interest holders and independent repair providers.

Defines key terms including "diesel exhaust fluid system" as a selective catalytic reduction system operated by digital electronic components, and "farm equipment" as diesel-powered motorized equipment used exclusively for agricultural production.

Grants the Iowa Attorney General authority to adopt administrative rules and enforce the chapter, with district courts authorized to issue injunctions against violations.

Protects manufacturers' trade secrets by explicitly stating the chapter does not require divulging proprietary information.

Establishes penalties for violations enforceable through civil suits brought by the Attorney General or county attorneys on behalf of the state.