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Oregon Mechanical Specialty Code Adoption

Adoption information

2025 Oregon Mechanical Specialty Code (OMSC)

Based on the 2024 International Mechanical Code (IMC) and International Fuel Gas Code (IFGC)

  • Effective Oct. 1, 2025 with a *6-month phase-in period
  • Mandatory: April 1, 2026
  • *During the phase-in period, use of the 2022 OMSC or the 2025 OMSC is permitted.

Summary of amendments - coming soon

Code review and adoption events and notices

All code adoption events and notices for the Oregon Mechanical Specialty Code (OMSC) are posted here and remain posted until the beginning of the next code adoption cycle.


Comments and testimony

Verbal testimony

Please email bcd.codesupport@dcbs.oregon.gov to sign up in advance to provide verbal testimony at a code review committee meeting. Instructions for providing testimony will be sent to you.

Written testimony

Please email written testimony for the code review committee to bcd.codesupport@dcbs.oregon.gov at least 24 hours before the meeting. Include your name, organization, and the related agenda item.