Permit Requirements for Union, Oregon
For HVAC projects in Union, determining the correct permitting authority depends on whether the project site is located within the incorporated city limits or in an unincorporated area of Union County.
Authority Having Jurisdiction (AHJ)
Most jurisdictions require permits for HVAC work to ensure safety and code compliance. The governing body responsible for issuing these permits varies by specific location:
General HVAC Guidelines
Permits are usually required for new installations, structural modifications, or major repairs. While minor maintenance or cosmetic updates may be exempt, landowners should always verify local codes before work begins.
Help Us Improve This Guide
If you have found a direct link to a permit portal or a specific local ordinance for HVAC in this area, please submit an update.
Because Union is located within Union County, the following broader county regulations may also apply to your project:
Oregon, Union County Hvac Permit Regulations and County Ordinances for Unincorporated Areas
Union County, Oregon HVAC Permit Requirements
In Union County, Oregon, installing or replacing an HVAC system generally requires both mechanical and electrical permits to ensure compliance with current energy and safety codes. The permitting process is managed at the county level for properties in unincorporated areas. The Union County Building Division, part of the Planning Department, handles these permits. Their office is located at 1001 Fourth Street, Suite C, La Grande, OR 97850, and they can be reached by phone at 541-963-1014.
For projects in unincorporated areas of Union County, building permits are required for all new construction, structural alterations, and certain repairs. This includes HVAC installations.
Application Process and Requirements
- Permit Types: You will need to determine the specific permit types required for your project, which will likely include mechanical and electrical permits for HVAC work.
- Application Submission: Applications are typically submitted online through the Oregon ePermitting System (BuildingPermits.Oregon.gov) or by contacting the Union County Building Division directly.
- Required Documents: A completed permit application, construction plans and drawings (including electrical, plumbing, and mechanical plans if applicable), a site plan, energy compliance documentation (for residential projects), and applicant identification are generally required.
- Plan Review: Submitted plans will be reviewed by the Union County Building Division. Any comments or requests for additional information must be addressed.
- Fees: All required permit and plan review fees must be paid. Fees can vary, and it's advisable to verify current amounts.
- Permit Validity: Issued building permits are valid for 180 days from issuance. Work must commence within this period, or the permit may become void.
- Contractor Licensing: Contractors performing HVAC work must hold a valid Oregon Contractors License Board (CCB) license.
- Building Codes: Projects must comply with the 2023 Oregon Residential Specialty Code (ORSC) for residential projects and the Oregon State Building Code (OSBC) for commercial projects, along with the 2022 Oregon Fire Code.
Processing Time
The typical processing time for initial plan review is 10-15 business days, though this can vary depending on the complexity of the project. For HVAC installations specifically, processing can take approximately 1 to 3 weeks.
Properties in Unincorporated Areas
The Union County Building Division is responsible for issuing permits for properties located in the unincorporated areas of the county. Building permits are required for new construction, structural alterations, and certain repairs in these areas. Code violations, such as failing to obtain necessary permits for construction or renovations, are addressed by Union County Code Enforcement.
Resources to Learn More
The following statewide building codes and regulations apply universally to all jurisdictions within Oregon:
Oregon Hvac Legislation, Codes, and Guidelines
Oregon HVAC Building Codes and Legislation
Oregon regulates heating, ventilation, and air conditioning (HVAC) systems through a series of state-specific specialty codes. These codes are updated periodically to incorporate modern standards, energy efficiency requirements, and safety protocols. As of April 2026, the primary codes governing mechanical systems in the state include the 2025 Oregon Mechanical Specialty Code (OMSC) and the 2023 Oregon Residential Specialty Code (ORSC).
The 2025 OMSC, which became mandatory on April 1, 2026, is based on the 2024 editions of the International Mechanical Code (IMC) and the International Fuel Gas Code (IFGC), with specific Oregon amendments. For residential construction, the 2023 ORSC provides the governing standards. Recent legislative and regulatory updates have introduced significant changes, including new requirements for heat pumps in certain new residential construction projects where split-system air conditioning is installed, aimed at improving energy efficiency and reducing long-term utility costs for homeowners.
Primary Regulatory Agencies
The administration and adoption of these building codes are managed by the following state entities:
- Oregon Building Codes Division (BCD): A division within the Department of Consumer and Business Services, the BCD is the primary agency responsible for adopting, administering, and enforcing the state's specialty codes, including the mechanical and residential codes.
- Residential and Manufactured Structures Board (RMSB): This board works with the BCD to review and approve updates to residential building codes, including recent measures regarding energy-efficient HVAC and heat pump mandates.
- Mechanical Board: This board collaborates with the BCD to adopt and administer the Oregon Mechanical Specialty Code.
- Construction Contractors Board (CCB): While the BCD sets the technical standards, the CCB is responsible for issuing specialty contracting licenses for HVAC work in the state.
Resources to Learn More