Oregon, Curry County HVAC Permit Regulations and County Ordinances for Unincorporated Areas
Curry County Building & Safety Division
The Curry County Building Division is responsible for administering the county's building permit program, which includes accepting and reviewing applications, issuing permits, and conducting field inspections to ensure compliance with state structural, mechanical, plumbing, and electrical codes. The division serves unincorporated areas of the county as well as specific municipalities that have entered into agreements with the county.
HVAC Permit Requirements for Unincorporated Areas
In unincorporated areas of Curry County, a mechanical permit is generally required for the installation or replacement of residential and commercial heating and cooling equipment. This includes, but is not limited to, HVAC systems, mini-split systems, furnaces, and wood stoves. Because Oregon adopts the Oregon Mechanical Specialty Code (OMSC) as a statewide standard, there is no blanket exemption for equipment replacement; even a like-for-like swap typically requires a permit and a final inspection to ensure safety and code compliance.
- Permit Scope: Mechanical permits are required for new installations, alterations, and replacements of HVAC equipment.
- Electrical Requirements: Note that heat pump installations often require both a mechanical permit (for the refrigerant circuit and air-handling components) and a separate electrical permit (for wiring and disconnects).
- Application Process: Applicants must submit a completed building permit application, along with necessary plans and documentation, to the Curry County Building Division. Applications can often be processed through the state's ePermitting system.
- Inspections: Once a permit is issued, the work must be inspected to verify it meets the required safety standards. A 48-hour business day notice is typically required to schedule inspections with the county.
- Exemptions: While some minor, non-structural repairs may be exempt, it is strongly recommended to contact the Building Division directly to verify if a specific project qualifies for an exemption before beginning work.
Resources to Learn More
Note: The following state-wide building codes and regulations apply universally to all jurisdictions within Oregon, including Curry County.
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