Under chapter 42.56 RCW, the department of ecology (ecology) maintains an index that includes interpretive and policy statements issued by ecology. Under RCW 34.05.230, ecology is filing notice in the Washington State Register about these statements.

To obtain copies of these items, copy and paste the web address (URL) from the table below into a web browser to view and download; or submit an email records request to ecology's public records officer at PublicRecordsOfficer@ecy.wa.gov following the instructions on the public records requests web page at https://ecology.wa.gov/About-us/Accountability-transparency/Public-records-requests.