2023 Iowa Code 904.312B – Purchase of biobased hydraulic fluids, greases, and other industrial lubricants

2022 Iowa Code 904.312B – Purchase of biobased hydraulic fluids, greases, and other industrial lubricants

2020 Iowa Code 904.312B – Purchase of biobased hydraulic fluids, greases, and other industrial lubricants

2018 Iowa Code 904.312B – Purchase of biobased hydraulic fluids, greases, and other industrial lubricants

2016 Iowa Code 904.312B – Purchase of biobased hydraulic fluids, greases, and other industrial lubricants

2014 Iowa Code 904.312B – Purchase of biobased hydraulic fluids, greases, and other industrial lubricants.

2009 Iowa Code 904.312B – Purchase of bio-based hydraulic fluids, greases, and other industrial lubricants