Oregon Revised Statutes Public Health and Safety § 459A.605

In consultation with the Department of Environmental Quality and affected state and local agencies, the Oregon Department of Administrative Services shall adopt rules for the purchase by the State of Oregon of compost and sewage sludge. The rules shall designate the state minimum purchasing standards. The rules shall encourage the use of compost and sludge without jeopardizing the safety and health of the citizens of the state or the environment.