Idaho, Jerome County HVAC Permit Regulations and County Ordinances for Unincorporated Areas

Jerome County HVAC Permit Requirements

Jerome County's Building Safety Department oversees building permits, including those for HVAC systems, in unincorporated areas of the county. The county adopts and enforces building codes based on the International Building Codes, with amendments specific to Idaho. For HVAC work, the county follows the 2018 International Mechanical Code, the 2018 International Fuel Gas Code, and relevant sections of the 2018 International Residential Code, along with Idaho state statutes and administrative rules.

Permits are generally required for new structures, additions, alterations, and any structure exceeding 200 square feet. Specifically for HVAC, while the state of Idaho may require separate permits for electrical, plumbing, and HVAC work, Jerome County's Building Department handles the mechanical permit application. It is advisable to contact the Jerome County Building Department directly to confirm specific requirements for HVAC permits, as they can vary based on the project's scope and location within unincorporated areas.

Properties in Unincorporated Areas

For properties located in unincorporated areas of Jerome County, the County Building Department is the primary authority for building permits. Permits are required for various construction activities, including new structures, additions, alterations, and structures over 200 square feet. Agricultural buildings have specific requirements, needing a Zoning Permit and an AG Siting Permit.

When applying for a permit in unincorporated areas, applicants typically need to submit a completed building permit application, floor plans, foundation plans, structural plans, framing plans, mechanical, electrical, and plumbing (MEP) plans, and a site plan. Additionally, a Fire Department letter may be required if the project is located more than 150 feet from the main road, and the access road must meet Fire Department standards.

It is important to note that work commenced without a permit can lead to fines, stop-work orders, and the potential removal of unapproved work.

Resources to Learn More

Note: The following state-wide building codes and regulations apply universally to all jurisdictions within Idaho, including Jerome County.

Idaho Hvac Legislation, Codes, and Guidelines

State Statutes and Adopted HVAC Codes

In Idaho, the regulation of heating, ventilation, and air conditioning (HVAC) systems is governed by Title 54, Chapter 50 of the Idaho Code. This legislation establishes the legal framework for the installation, improvement, extension, and alteration of HVAC systems throughout the state. To ensure safety and efficiency, Idaho adopts and enforces specific model codes published by the International Code Council (ICC). As of the most recent regulatory information, the state utilizes the 2018 editions of the International Mechanical Code (IMC), the International Fuel Gas Code (IFGC), and Parts V and VI of the International Residential Code (IRC). These codes set the minimum standards for equipment installation, ventilation rates, combustion air calculations, and venting configurations.

Primary State Board and Agencies

The primary state-level authority responsible for administering these standards is the Idaho Division of Building Safety (DBS), which operates under the Idaho Division of Occupational and Professional Licenses (DOPL). The Idaho Heating, Ventilation, and Air Conditioning Board, housed within this structure, is responsible for promulgating rules, overseeing contractor licensing, and ensuring compliance with the adopted codes. While the state sets these minimum standards, it is important to note that Idaho operates a dual-track system; many counties and incorporated cities maintain their own building departments and may act as the local Authority Having Jurisdiction (AHJ) for issuing mechanical permits and conducting inspections, provided their programs meet or exceed state requirements.

Resources to Learn More

Select a City in Jerome County

If your project is located within incorporated city limits, you will likely need to follow municipal ordinances rather than county rules. Select your city below to view local regulations.

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