Oregon enforces the 2024 IBC

Record of adoption

In force since

Oct 1, 2025

Legal citation

OAR 918-460-0010

Adopted by

Oregon Department of Consumer and Business Services, Building Codes Division (Building Codes Structures Board advises)

Second reading

Agreed Oct 18, 2026

Applies

Statewide

Also called

OSSC, 2025 OSSC

Six-month phase-in is over: Chapter 1 was mandatory Oct 1, 2025, and the construction provisions became mandatory Apr 1, 2026 (the 2022 OSSC was permitted through Mar 31, 2026). The OSSC also carries the 2024 IFC new-construction provisions and the 2024 IEBC; commercial energy provisions are in the separate OEESC.

How Oregon adopts the IBC

• Agency rule

BCD amends OAR 918-460-0010 for each OSSC edition after a code review committee, review by the Building Codes Structures Board and a public hearing. ORS 455.030 requires advisory-board approval where applicable and notice of a public hearing, and ORS 455.040 makes the state building code uniform statewide. No legislative approval step was found.

Cycle. Roughly triennial, following the IBC cycle; rule history shows OSSC amendments effective Oct 1, 2019, Oct 1, 2022, and Oct 1, 2025.

Laws, rulings, and other actions

1. Apr 14, 2025Legislation
   SB 492025 regular session

   Expands the Building Codes Structures Board (ORS 455.132), which assists with the structural and energy programs, from nine to 11 members, with added seats including a fire protection engineer and a structural engineer.

   Enacted 2025 (passed Senate Apr 14, 2025, and House May 8, 2025), effective Jan 1, 2026

   apps.oregonlegislature.gov (opens in a new tab)

How it was checked

Verified

Two separate readings of the state’s own record agree, and the passage is on file word for word.

Read twice: a second, blind reading of the state’s record agreed with the first on Oct 18, 2026.

The state’s record was last read on Oct 18, 2026, from four source pages.

Evidence 6 sources

Sources for the record itself come first, the state’s own records ahead of others. A label marks a source about something else, such as an exception. A source marked secondary is not the state’s own record.

• “Effective October 1, 2025, the 2025 Oregon Structural Specialty Code is:”

  “The 2024 Edition of the International Building Code”

  “2024 International Fire Code (IFC) new construction provisions”

• “BCD 11-2025, amend filed 09/26/2025, effective 10/01/2025”

  “BCD 12-2022, amend filed 09/29/2022, effective 10/01/2022”

  “BCD 11-2019, amend filed 09/26/2019, effective 10/01/2019”

• “The state building code shall be applicable and uniform throughout this state and in all municipalities”

  “Subject to any requirement for approval by the appropriate advisory boards”

• “2025 Oregon Structural Specialty Code (OSSC)”

  “Effective: Oct. 1, 2025 with a *6-month phase-in period / Mandatory April 1, 2026”

• About the note

  “the use of the 2025 Oregon Structural Specialty Code or the 2022 Oregon Structural Specialty Code is permitted.”

  “for the period beginning October 1, 2025 and ending March 31, 2026.”

• About the note

  “Effective and mandatory Oct. 1, 2025”

  “Mandatory April 1, 2026”

  “use of the 2022 OSSC or the 2025 OSSC is permitted.”

Related pages

• See Oregon’s IBC on the map
• IBC adoption in every state
• All six codes in Oregon

Other codes in Oregon

• NEC2026 NECVerified
• IRC2024 IRCVerified
• IFC2024 IFCVerified
• IECC residentialState’s own codePartial
• IECC commercialAnother model codeVerified