2023 North Dakota Code 57-39.2-04.2 – Sales tax exemption for power plant construction, production, environmental upgrade, and repowering equipment and oil refinery or gas processing plant environmental upgrade equipment

2022 North Dakota Code 57-39.2-04.2 – Sales tax exemption for power plant construction, production, environmental upgrade, and repowering equipment and oil refinery or gas processing plant environmental upgrade equipment

2021 North Dakota Code 57-39.2-04.2 – Sales tax exemption for power plant construction, production, environmental upgrade, and repowering equipment and oil refinery or gas processing plant environmental upgrade equipment

2019 North Dakota Code 57-39.2-04.2 – Sales tax exemption for power plant construction, production, environmental upgrade, and repowering equipment and oil refinery or gas processing plant environmental upgrade equipment

2016 North Dakota Code 57-39.2-04.2 – Sales tax exemption for power plant construction, production, environmental upgrade, and repowering equipment and oil refinery or gas processing plant environmental upgrade equipment

2014 North Dakota Code 57-39.2-04.2 – (Effective through June 30, 2017) Sales tax exemption for power plant construction, production, environmental upgrade, and repowering equipment and oil refinery or gas processing plant environmental upgrade equipment

2009 North Dakota Code 57-39.2-04.2 – (Effective through June 30, 2015) Sales tax exemption for power plant construction, production, environmental upgrade, and repowering equipment and oil refinery or gas processing plant environmental upgrade equipment