2023 Washington Code 19.86.050 – Transactions and agreements not to use or deal in commodities or services of competitor declared unlawful when lessens competition

2022 Washington Code 19.86.050 – Transactions and agreements not to use or deal in commodities or services of competitor declared unlawful when lessens competition

2020 Washington Code 19.86.050 – Transactions and agreements not to use or deal in commodities or services of competitor declared unlawful when lessens competition

2019 Washington Code 19.86.050 – Transactions and agreements not to use or deal in commodities or services of competitor declared unlawful when lessens competition

2018 Washington Code 19.86.050 – Transactions and agreements not to use or deal in commodities or services of competitor declared unlawful when lessens competition

2016 Washington Code 19.86.050 – Transactions and agreements not to use or deal in commodities or services of competitor declared unlawful when lessens competition

2015 Washington Code 19.86.050 – Transactions and agreements not to use or deal in commodities or services of competitor declared unlawful when lessens competition

2014 Washington Code 19.86.050 – Transactions and agreements not to use or deal in commodities or services of competitor declared unlawful when lessens competition

2013 Washington Code 19.86.050 – Transactions and agreements not to use or deal in commodities or services of competitor declared unlawful when lessens competition

2009 Washington Code 19.86.050 – Transactions and agreements not to use or deal in commodities or services of competitor declared unlawful when lessens competition