Permit Requirements for Adrian, Oregon

For HVAC projects in Adrian, determining the correct permitting authority depends on whether the project site is located within the incorporated city limits or in an unincorporated area of Malheur 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.

Because Adrian is located within Malheur County, the following broader county regulations may also apply to your project:

Oregon, Malheur County Hvac Permit Regulations and County Ordinances for Unincorporated Areas

Malheur County HVAC Permit Requirements

In Malheur County, Oregon, obtaining permits for HVAC installations is handled by the Malheur County Building Department. This department is responsible for plan review and inspections, and they issue building, plumbing, mechanical, and electrical permits. Replacing or installing a new HVAC system requires both mechanical and electrical permits to ensure compliance with current energy and safety codes.

For properties in unincorporated areas of Malheur County, the county government is responsible for issuing all types of building permits. The permitting process generally involves submitting a structural permit application to Planning & Zoning, obtaining approval from Environmental Health if a septic system is involved, and then submitting the structural permit application along with trade permits (electrical, plumbing, mechanical) to the Building Department.

Key steps and requirements include:

It is important to note that even if a building permit is not required for certain minor repairs or structures, separate electrical, plumbing, or mechanical permits may still be necessary for HVAC installations.

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:

Resources to Learn More

Help Us Improve This Guide

Did you find a dead link, or do you have the direct link to the Adrian permit application portal? Help us keep this information accurate by submitting an update.