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Oregon Energy Efficiency Specialty Code
Overview
View the 2025 Oregon Energy Efficiency Specialty Code.
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The Oregon Building Code Division works with the Construction Industry Energy Board to adopt the Oregon Energy Efficiency Specialty Code (OEESC). The OEESC adoption process starts with the publication of an updated ASHRAE Standard 90.1, Energy Standard for Sites and Buildings Except Low-Rise Residential Buildings.
2025 Oregon Energy Efficiency Specialty Code (OEESC)
- Effective: Jan. 1, 2025 with 6 month phase-in period
- Mandatory: July 1, 2025
- Based on ASHRAE Standard 90.1-2022
- Code update training
Related Resources
Oregon’s EnerCity Collaborative (ECC) EnerCity Collaborative Training Factsheet
Oregon’s EnerCity Collaborative (ECC) equips existing contractors and aspiring workers with the skills needed to thrive in the growing energy efficiency sector.
HUD: Multifamily Utility Benchmarking Toolkit
This toolkit is a comprehensive guide to utility benchmarking for the multifamily sector and includes links to key resources and requirements, tools and reports, case studies, and FAQs.
DOE: WAP Guidelines for Home Energy Professionals
Guidelines for Home Energy Professionals including Standard Work Specifications for Home Energy Upgrades, and Home Energy Professional certifications along with accreditation of energy-efficiency training programs.