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Mechanical Code Program

Adopted structural codes and standards

The Oregon Mechanical Building Code (OMSC) establishes the minimum requirements for the design, installation, alteration and inspection of mechanical systems that are permanently installed and utilized to provide control of environmental conditions and related processes within buildings.

2019 Oregon Mechanical Specialty Code (OMSC)
Effective Oct. 1, 2019

The 2019 OMSC is based on the 2018 International Mechanical Code (IMC).
The fuel gas provisions of Appendix C are based on the 2018 International Fuel Gas Code (IFGC).

Code adoption: 2019 OMSC - Significant changes guide

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