WSR 25-18-016

INTERPRETIVE AND POLICY STATEMENT

DEPARTMENT OF ECOLOGY

[Filed August 20, 2025, 4:08 p.m.]

Notice of Interpretive and Policy Statements

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

To obtain copies of these items, please:


•	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.

New Statements:

	Title of Interpretive/Policy Statement	Web Link (if applicable)
	Ecology Source Test Manual - Procedures for Compliance Testing February 2025	https://apps.ecology.wa.gov/publications//2502001.html
	Policy on second tier review health impact assessment for emergency generators (greater than 2000 bhp)	https://apps.ecology.wa.gov/publications/SummaryPages/2502028.html

Updated Statements:

	Title of Interpretive/Policy Statement	Web Link (if applicable)
	"AQP-GUI-2025 AERMOD APP Review" is replacing: "AQP-GUI-2021 AERMOD APP Review"	N/A