A bill for an act relating to raw farm products for purposes of increased gross weight for motor vehicles transporting such products on this state’s public highways.

SF 506 increases the allowable gross weight limit for vehicles transporting specific agricultural products on Iowa highways from 5% to 25% over the vehicle's registered weight. The bill expands the list of qualifying "raw farm products" to include manure, soybean meal (dried or wet), wet or dry distillers grains, and soil amendments (defined as substances improving soil characteristics, excluding fertilizers or pesticides). This change directly affects farmers and transport companies moving these qualifying goods, codifying and expanding an existing exemption that previously relied on Department of Transportation rules. The bill also clarifies that cracked or ground grain delivered directly between farms qualifies as a raw farm product.