Oregon residential energy code

Oregon residential energy code (2026 Oregon Residential Specialty Code (energy provisions in chapter 11))

As of 2026-10-22. DOE's Building Energy Codes Program (energycodes.gov) lags state adoption, so where a state's own rule was read it governs and DOE's differing figure is noted. Residential means one- and two-family dwellings and townhouses. Local amendments can apply; check the code body before relying on a section.

Key features

Code in force: 2026 Oregon Residential Specialty Code (energy provisions in chapter 11)
In force since: 2026-10-01 (mandatory from 2027-04-01)
Adoption: Statewide mandatory code
The 2023 ORSC is allowed during a six-month phase-in.
DOE lists the 2023 ORSC; the final rule filed 2026-09-30 shows the 2026 ORSC.
Verified against the state's own adopted rule or code-body page.

Governing body

State of Oregon

Region

Applies to

General contracting HVAC Insulation Electrical Windows & doors

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