2023 Washington Code 43.21A.450 – Control of outflow and level of Lake Osoyoos — Lake Osoyoos International Water Control Structure authorized

2022 Washington Code 43.21A.450 – Control of outflow and level of Lake Osoyoos–Lake Osoyoos International Water Control Structure authorized

2020 Washington Code 43.21A.450 – Control of outflow and level of Lake Osoyoos — Lake Osoyoos International Water Control Structure authorized

2019 Washington Code 43.21A.450 – Control of outflow and level of Lake Osoyoos — Lake Osoyoos International Water Control Structure authorized

2018 Washington Code 43.21A.450 – Control of outflow and level of Lake Osoyoos — Lake Osoyoos International Water Control Structure authorized

2016 Washington Code 43.21A.450 – Control of outflow and level of Lake Osoyoos–Lake Osoyoos International Water Control Structure authorized

2015 Washington Code 43.21A.450 – Control of outflow and level of Lake Osoyoos–Lake Osoyoos International Water Control Structure authorized

2014 Washington Code 43.21A.450 – Control of outflow and level of Lake Osoyoos — Lake Osoyoos International Water Control Structure authorized

2013 Washington Code 43.21A.450 – Control of outflow and level of Lake Osoyoos — Lake Osoyoos International Water Control Structure authorized

2009 Washington Code 43.21A.450 – Control of outflow and level of Lake Osoyoos — Lake Osoyoos International Water Control Structure authorized