2024 Arizona Laws 49-361. Sewage treatment plants; operator certification

2023 Arizona Laws 49-361. Sewage treatment plants; operator certification

2022 Arizona Laws 49-361. Sewage treatment plants; operator certification

2021 Arizona Laws 49-361. Sewage treatment plants; operator certification

2020 Arizona Laws 49-361. Sewage treatment plants; operator certification

2019 Arizona Laws 49-361. Sewage treatment plants; operator certification

2018 Arizona Laws 49-361. Sewage treatment plants; operator certification

2016 Arizona Laws 49-361. Sewage treatment plants; operator certification

2015 Arizona Laws 49-361. Sewage treatment plants; operator certification

2014 Arizona Laws 49-361. Sewage treatment plants; operator certification

2013 Arizona Laws 49-361. Sewage treatment plants; operator certification

2009 Arizona Laws 49-361 – Sewage treatment plants; operator certification