Permit Requirements for Centenary, South Carolina
For HVAC projects in Centenary, determining the correct permitting authority depends on whether the project site is located within the incorporated city limits or in an unincorporated area of Marion 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 Centenary is located within Marion County, the following broader county regulations may also apply to your project:
South Carolina, Marion County Hvac Permit Regulations and County Ordinances for Unincorporated Areas
Marion County, South Carolina HVAC Permit Requirements
In Marion County, South Carolina, HVAC permit requirements are managed by the Marion County Planning and Community Development Department for all unincorporated areas. Projects with a value exceeding $1,000 or an area of 200 square feet or more generally require a building permit.
For contractors, a Marion County business license is mandatory. Additionally, a South Carolina state contractor's license is required for work that exceeds statewide thresholds. A signed contract agreement between the contractor and homeowner is also a required document.
Before obtaining a building permit, a zoning compliance permit is necessary. This permit is typically available on Tuesdays and Thursdays. Other required documents may include a receipt showing water/sewer tap payment, two sets of plans (if required), and a property survey or plat for septic systems.
Marion County enforces the 2021 International Building Code (IBC) with South Carolina amendments, the 2009 IECC Energy Code, and the 2020 NEC.
Rules for Properties in Unincorporated Areas
The Marion County Planning and Community Development Department has jurisdiction over all unincorporated areas of Marion County. The department is responsible for zoning issues, issuing permits, and ensuring construction and renovation projects comply with land use ordinances and local regulations. A zoning permit is required before obtaining a building permit for any structure in Marion County.
For owner-builders in unincorporated areas, property owners may undertake construction or improvements on a one- or two-family residence for their own use without a contractor's license. However, this is contingent upon the building being for personal use and occupancy, the owner personally supervising the construction, and the building not being sold or rented within two years of completion. The owner must file notice with the Register of Deeds.
HVAC Contractor Licensing in South Carolina
In South Carolina, HVAC contractors must be licensed. There are two main types of contractor licenses: Mechanical Contractors for commercial projects over $10,000, and Residential HVAC Contractors for projects over $500. Both license types require passing specific exams. Residential HVAC contractors need at least one year of experience, while commercial mechanical contractors require two years of experience for the primary qualifying party.
Additionally, HVAC professionals may need EPA Section 608 certification for handling refrigerants. A surety bond is also a requirement, with amounts varying based on project scope. For residential contractors, a $5,000 surety bond is typically required, and for commercial projects, it can range from $10,000 to $350,000.
- Marion County Planning and Community Development Department: 2523 East Highway 76, Marion, SC 29571, Phone: (843) 423-8238
- Marion County Building Inspections Office: Contact Building Official Wayne Fox at (843) 423-8238 or Permits Coordinator Spencer Jordan at (843) 423-8191 ext. 147 for inspections.
- South Carolina Department of Labor, Licensing and Regulation (LLR): Oversees contractor licensing.
- South Carolina Residential Builders Commission: Issues residential specialty HVAC contractor licenses.
- South Carolina Contractor's Licensing Board: Issues mechanical contractor licenses.
Resources to Learn More
The following statewide building codes and regulations apply universally to all jurisdictions within South Carolina:
South Carolina Hvac Legislation, Codes, and Guidelines
State Statutes and Adopted HVAC Codes
In South Carolina, building codes are mandated by the state legislature and enforced at the local level. The state utilizes the International Code Council (ICC) family of codes as the foundation for its statewide standards. As of the most recent major update effective January 1, 2023, South Carolina has adopted the 2021 editions of the International Codes, including the International Mechanical Code (IMC) and the International Residential Code (IRC), with specific South Carolina-approved modifications. These codes establish the minimum requirements for the design, installation, maintenance, and inspection of HVAC systems in residential, commercial, and industrial buildings.
Primary State Agency
The South Carolina Building Codes Council is the primary state body responsible for adopting, modifying, and overseeing the implementation of these building codes. The Council, which operates under the South Carolina Department of Labor, Licensing and Regulation (LLR), reviews ICC code editions and determines necessary state-specific amendments to address local environmental and construction conditions. While the Council sets the standards, the actual enforcement of these codes is carried out by local jurisdictions (cities and counties), which are required to employ certified building officials to conduct plan reviews and field inspections.
Resources to Learn More