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South Carolina, Williamsburg County Plumbing Permit Regulations and County Ordinances for Unincorporated Areas

Williamsburg County Plumbing Permit Requirements

Williamsburg County, South Carolina, has specific requirements for plumbing permits, primarily handled by the County Building Inspection Office, also known as Code Enforcement. These regulations apply to properties within the unincorporated areas of the county. The county enforces the latest South Carolina State adopted versions of various building codes, including the International Plumbing Code.

When applying for a plumbing permit, detailed plans are required. These plans must indicate fixtures, piping, slopes, and materials and sizes. They should also show connection points to septic tanks, sewer systems, and water lines.

Key Plumbing Inspection Stages:

For septic tank permits specifically, you will need to visit the South Carolina Department of Health and Environmental Control (SCDHEC) website.

Contractors must be licensed for the full contract amount, with specialty licenses valid only for work up to $5,000.

Rules for Properties in Unincorporated Areas

The Williamsburg County Building Codes Department, established in 1999, has jurisdiction over the unincorporated areas of Williamsburg County. A building permit, which includes plumbing, is required for both residential and commercial construction in these areas.

The county reviews submitted plans for compliance with building codes, specifically the 2021 International Building Code (IBC) and the 2021 International Residential Code (IRC), along with South Carolina amendments.

Properties in unincorporated areas must adhere to the Land Development Regulations ordinance, enacted in 2003, which governs land subdivision.

Resources to Learn More

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

South Carolina Plumbing Legislation, Codes, and Guidelines

State-Level Plumbing Codes in South Carolina

The state of South Carolina mandates the use of the 2021 International Plumbing Code (IPC) as the foundation for its statewide plumbing standards. This code is implemented with specific South Carolina modifications approved by the state. These standards are mandatory for all municipalities and counties across the state, effective as of January 1, 2023.

Primary Regulatory Agency

The South Carolina Building Codes Council is the primary state body responsible for the adoption and modification of building codes, including plumbing standards. The Council is composed of public and private building industry officials appointed by the governor. Its functions include reviewing model codes published by the International Code Council (ICC), voting on their adoption for use in South Carolina, and determining necessary state-level modifications. Local jurisdictions are responsible for the enforcement of these state-mandated codes through their respective building departments and certified building officials.

Resources to Learn More

Select a City in Williamsburg 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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