Versions of See prior versions of a law on LawServer 2023 Washington Code 70A.15.2260 – Operating permits for air contaminant sources — Generally — Fees, report to legislature 2022 Washington Code 70A.15.2260 – Operating permits for air contaminant sources–Generally–Fees, report to legislature 2020 Washington Code 70A.15.2260 – Operating permits for air contaminant sources — Generally — Fees, report to legislature