2023 North Dakota Code 43-35-18.3 – Firm engaged in drilling of geothermal systems to employ certified driller – Exception

2022 North Dakota Code 43-35-18.3 – Firm engaged in drilling of geothermal systems to employ certified driller – Exception

2021 North Dakota Code 43-35-18.3 – Firm engaged in drilling of geothermal systems to employ certified driller – Exception

2019 North Dakota Code 43-35-18.3 – Firm engaged in drilling of geothermal systems to employ certified driller – Exception

2016 North Dakota Code 43-35-18.3 – Firm engaged in drilling of geothermal systems to employ certified driller – Exception

2014 North Dakota Code 43-35-18.3 – Firm engaged in drilling of geothermal systems to employ certified driller – Exception

2009 North Dakota Code 43-35-18.3 – Firm engaged in drilling of geothermal systems to employ certified driller – Exception