Versions of See prior versions of a law on LawServer 2023 North Dakota Code 49-02-31 – Purchase and retirement of renewable energy and recycled energy certificates to meet the objective 2022 North Dakota Code 49-02-31 – Purchase and retirement of renewable energy and recycled energy certificates to meet the objective 2021 North Dakota Code 49-02-31 – Purchase and retirement of renewable energy and recycled energy certificates to meet the objective 2019 North Dakota Code 49-02-31 – Purchase and retirement of renewable energy and recycled energy certificates to meet the objective 2016 North Dakota Code 49-02-31 – Purchase and retirement of renewable energy and recycled energy certificates to meet the objective 2014 North Dakota Code 49-02-31 – Purchase and retirement of renewable energy and recycled energy certificates to meet the objective 2009 North Dakota Code 49-02-31 – Purchase and retirement of renewable energy and recycled energy certificates to meet the objective