As indicated in ORS 536.220, the IWRS is to be updated every five years. The process for completing the next update will include extensive outreach and engagement to ensure that the diverse interests of Oregonians are reflected in our state's IWRS. Engagement is expected to begin in Spring 2023.
The following graphic details the workflow needed to update the IWRS from an engagement plan to final adoption by the Water Resources Commission.

![]()