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Oregon Population Forecast Review and Appeal Process 

The review and appeal processes are mandated by the Oregon Administrative Rules. 

The 45-day formal review process begins, March 15, 2026 and ends on May 5, 2026. Within this 45-day period, a member of the public or an affected local government may file objections with PRC. 

If you plan to file an objection to a proposed population forecast, please first send an email to Neal Marquez at askprc@pdx.edu to notify us of your intent prior to submitting your appeal form and supporting information.

These objections must be filed in writing using this form (pdf) and must be submitted via US Mail or email to PRC by no later than 5:00 pm on May 5, 2026. 

A valid objection must include data or other information to support the objection. Acceptable data and information may include:

• Corrections or revisions to information that had been previously sent to PRC (e.g., General Demographic Survey, Housing Development Survey).
• New information that was obtained after submitting a completed demographic or housing development survey during the forecast development period.
• Evidence that any of the supporting information used to develop the forecasts is erroneous.
• Other information that PRC determines is relevant.

Please note there are three possible outcomes of the formal review period.

• If PRC does not receive an objection within the 45-day period, the Proposed forecast becomes the basis for the Final forecast.
• If PRC receives an objection within the 45-day period, PRC will review the objection along with its supporting information, and make appropriate changes, if necessary, to the Proposed forecast, which will be reflected in the Final forecast.
• PRC may overrule the objection as a reserved right, and affirm the Proposed forecast, which would then be issued as the Final forecast.