2023 Washington Code 41.37.220 – Employer and member contribution rates

2022 Washington Code 41.37.220 – Employer and member contribution rates

2020 Washington Code 41.37.220 – Employer and member contribution rates

2019 Washington Code 41.37.220 – Employer and member contribution rates

2018 Washington Code 41.37.220 – Employer and member contribution rates

2016 Washington Code 41.37.220 – Employer and member contribution rates

2015 Washington Code 41.37.220 – Employer and member contribution rates

2014 Washington Code 41.37.220 – Employer and member contribution rates

2013 Washington Code 41.37.220 – Employer and member contribution rates

2009 Washington Code 41.37.220 – Employer and member contribution rates.