2023 North Dakota Code 6-09.4-05 – Participation voluntary – Agreement to participate

2022 North Dakota Code 6-09.4-05 – Participation voluntary – Agreement to participate

2021 North Dakota Code 6-09.4-05 – Participation voluntary – Agreement to participate

2019 North Dakota Code 6-09.4-05 – Participation voluntary – Agreement to participate

2016 North Dakota Code 6-09.4-05 – Participation voluntary – Agreement to participate

2014 North Dakota Code 6-09.4-05 – Participation voluntary – Agreement to participate

2009 North Dakota Code 6-09.4-05 – Participation voluntary – Agreement to participate