Relating to diesel fuel; prescribing an effective date.

Establishes standard for carbon intensity and other characteristics of diesel fuel used in on-road motor vehicles. Establishes timeline for Oregon fuel standard to apply to regions of state. ] Directs State Department of Agriculture to suspend requirement that fuels meet standard if supply is insufficient to meet anticipated demand. Directs department to suspend requirement that fuels meet standard if price of fuels that meet standard exceeds price of petroleum diesel. ] Directs Department of Environmental Quality, in consultation with other state agencies, to study feasibility of phasing out fossil diesel fuels with high carbon intensity and examine impacts of requiring carbon intensity value of 60 grams of carbon dioxide equivalent per megajoule or less for onroad diesel fuel. Directs department to submit findings in report to interim committees of Legislative Assembly related to energy and climate no later than September 15, 2024. Takes effect on 91st day following adjournment sine die.