2023 Washington Code 39.06.010 – Contracts with unregistered or unlicensed contractors and with other violators prohibited

2022 Washington Code 39.06.010 – Contracts with unregistered or unlicensed contractors and with other violators prohibited

2020 Washington Code 39.06.010 – Contracts with unregistered or unlicensed contractors and with other violators prohibited

2019 Washington Code 39.06.010 – Contracts with unregistered or unlicensed contractors and with other violators prohibited

2018 Washington Code 39.06.010 – Contracts with unregistered or unlicensed contractors and with other violators prohibited

2016 Washington Code 39.06.010 – Contracts with unregistered or unlicensed contractors and with other violators prohibited

2015 Washington Code 39.06.010 – Contracts with unregistered or unlicensed contractors and with other violators prohibited

2014 Washington Code 39.06.010 – Contracts with unregistered or unlicensed contractors and with other violators prohibited

2013 Washington Code 39.06.010 – Contracts with unregistered or unlicensed contractors and with other violators prohibited

2009 Washington Code 39.06.010 – Contracts with unregistered or unlicensed contractors and with other violators prohibited