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Noise 2024

Adopted rule

Administrative Order No.: DEQ-17-2024
Filed and effective: Oct. 17, 2024
See Oregon Bulletin, November 2024

Rulemaking contact: Rachel Fernandez, DEQ; Tom Jackman, Oregon Department of Energy

The primary purpose of this rulemaking is to amend Division 35 to allow solar energy generation facilities to demonstrate compliance with noise regulations in the same manner as allowed for wind electrical generation facilities. 

This includes:
  1. Allowing the use of an assumed ambient background baseline noise level of 26 dBA for solar energy facility sites, unless evidence shows that the actual background level is higher
  2. Allowing for a willing landowner to waive the ambient noise degradation standard for their property, while maintaining the Table 8 limits

This rulemaking was conducted in partnership with the Oregon Department of Energy, Energy Facility Siting Council who certify the construction of new, large energy facilities in Oregon.

​DEQ is convening an advisory committee to review the technical issues and fiscal impacts related to the proposed rules. In convening this committee, DEQ has appointed members that reflect the range of entities that are both directly and indirectly affected by proposed changes to the rules.​



Public involvement

The comment period closed at 4 p.m. on June 21, 2024.
For more information, see the Notice of Proposed Rulemaking, which includes the notice and proposed rules.
Public hearing 
DEQ held a public hearing on June 17, 2024.

EQC action

At the 430th Oregon Environmental Quality Commission meeting on Jan. 24, 2024, the Environmental Quality Commission authorized delegation to Director Leah Feldon for the Solar Noise 2024 rulemaking. Director Feldon approved the staff report and adopted these rules on Oct. 17, 2024.