Prevailing Wage Requirements in South Carolina: Government Contract Rules

The Davis-Bacon Act, codified at 40 U.S.C. § 3141 et seq., establishes the primary prevailing wage framework applicable in South Carolina. This federal law applies to construction contracts exceeding $2,000 that are funded in whole or in part by the federal government. The Department of Labor (DOL) determines and publishes prevailing wage rates by county and trade for covered projects, based on union wage surveys and collective bargaining agreements in the local area.

Covered employers must pay all workers—regardless of union membership—the prevailing wage rates established by the DOL for their trade and county. These rates typically include base hourly wages and fringe benefits (health insurance, pension contributions, apprenticeship training). The Davis-Bacon Act applies to construction, alteration, and repair of public buildings and works funded federally, including projects funded through the General Services Administration, Department of Defense, Department of Transportation, and other federal agencies.

Enforcement is conducted by the DOL's Wage and Hour Division. Violations can result in back wage claims, liquidated damages, and debarment from federal contract eligibility for up to three years. Contractors must maintain certified payroll records and submit them to the contracting officer, documenting hours worked, wage rates paid, and fringe benefits provided. The DOL investigates complaints from workers or agencies and can assess penalties directly against contractors.

South Carolina has enacted no state prevailing wage law applicable to either public or private construction projects. The South Carolina Code § 40-59-20 et seq. regulates the licensing of construction services contractors but contains no prevailing wage requirement. This means that state and local government construction projects in South Carolina are not subject to any prevailing wage mandate under state law.

This represents a significant gap compared to the federal framework. While federal prevailing wage (Davis-Bacon Act) covers federally funded projects, state-funded, county-funded, and municipal construction in South Carolina has no prevailing wage requirement. Contractors on purely state or local public works projects may pay market wages or negotiate rates without reference to union standards or prevailing wage surveys. This applies unless the state or local government voluntarily adopts prevailing wage policies, which some cities or counties may do through procurement ordinance.

The absence of state prevailing wage law means South Carolina contractors have lower compliance burdens on non-federal projects compared to states with prevailing wage statutes (such as California, New York, or Illinois). However, contractors must carefully determine the funding source of any project. If a project receives federal dollars—even partial federal funding mixed with state or private funds—the Davis-Bacon Act applies and federal prevailing wage rates must be paid.

South Carolina's approach aligns with the state's general policy of limiting labor regulations and union-friendly mandates. Contractors should review project specifications and funding documentation to confirm whether prevailing wage applies. If a project is funded entirely by private parties or solely by South Carolina state and local funds (and no prevailing wage ordinance is in place), prevailing wage does not apply. However, contractors bidding on mixed-funded projects or those receiving any federal grant or loan must comply with federal rates.

The Davis-Bacon Act contains specific statutory exceptions that contractors should understand. Projects funded by the federal government that do not constitute 'public works' or 'construction' are excluded—for example, purely supply contracts or professional services not involving construction labor are not covered. Additionally, certain federal funding sources have explicit prevailing wage exemptions, such as some workforce development grants or educational loans (though federal agencies must still determine whether their specific program includes prevailing wage requirements).

Small projects under the $2,000 threshold on federal projects are exempt. However, this threshold is rarely a factor in real construction because even modest renovations typically exceed $2,000. States may opt out of Davis-Bacon under certain circumstances (though South Carolina has not done so), and some territories or federal programs have modified prevailing wage requirements.

Private construction projects in South Carolina that receive no federal funding are entirely exempt from prevailing wage requirements, both federal and state. This is the largest category of construction work in South Carolina and includes private residential construction, commercial development, and industrial projects funded entirely by private capital. Contractors are free to pay market rates on these projects.

Union and non-union workers receive the same prevailing wage rate on covered projects—the law does not require union membership or payment of union dues. However, some prevailing wage rates include fringe benefits (pension, health insurance) that may be directed to union trust funds or individual accounts depending on project agreements.

Voluntary prevailing wage ordinances adopted by South Carolina municipalities or counties create local requirements beyond federal law. If a city or county government has adopted such an ordinance, contractors must comply with its terms on those specific projects, even if federal funding is absent. Contractors should review local procurement policies before bidding.

Step 1 — Document Everything. Maintain detailed certified payroll records for all workers on covered projects, including name, job classification, hours worked daily, total hours per week, hourly wage rate paid, and all fringe benefits provided (health insurance, pension, training fund contributions). These records must be certified as accurate by the contractor or payroll manager and submitted to the contracting officer or project engineer weekly or as required by the contract. Keep originals and copies of all wage statements, cancelled checks, or direct deposit records showing actual payment. Photograph or scan time cards, timesheets, and any correspondence with workers about wage rates.

Step 2 — Understand Project Funding and Applicable Rates. Before beginning work, verify the project funding source in the bid documents or contract. Contact the project owner, contracting officer, or your surety to confirm whether federal funding is involved. If federal funds are present, obtain the current prevailing wage determination from the DOL's Wage Determination Online (WDOL) system at sam.gov, searching by project county and trade. The determination will list the specific hourly rate and fringe benefits required for each labor classification on the project. Ensure all foremen, supervisors, and payroll staff understand which rates apply to which workers.

Step 3 — File Notices and Initial Compliance. Post the prevailing wage determination in a visible location on the job site so all workers can see the wages to be paid. Provide a copy to all workers before they begin work. Ensure your contract language includes prevailing wage terms and that you have incorporated the DOL's Wage and Hours Division prevailing wage clauses into your agreements with subcontractors. Many federal contracts require submission of a Payroll Certification Statement (Form WH-347) weekly, certifying that prevailing wages have been paid. Confirm the submission schedule with the contracting officer.

Step 4 — Monitor and Adjust Pay Practices. Pay each worker no less than the prevailing wage rate for their classification each pay period. If a worker performs multiple classifications (e.g., carpenter and laborer), pay the higher rate for all hours unless the DOL wage determination permits split classifications with specific hour thresholds. Calculate fringe benefits correctly: if the determination specifies a cash fringe or deduction (rather than insurance/pension contributions), you may deduct it from the total hourly rate only if workers agree in writing and you actually provide the benefit. Submit certified payroll reports to the contracting officer within the deadline specified in the contract (usually weekly).

Step 5 — Respond to Audits and Investigations. If the DOL's Wage and Hour Division audits your project (either scheduled or in response to a complaint), preserve all payroll records and cooperate fully. An investigator will request certified payroll, time cards, pay stubs, and bank records for the pay periods in question. Do not alter or destroy records. If the investigation finds underpayment, the DOL will issue a wage determination letter specifying back wages owed. You are liable for the difference between what was paid and what should have been paid, plus liquidated damages equal to the unpaid wages (doubling your liability), plus potential penalties.

Step 6 — When to Consult an Attorney. Contact an employment law attorney experienced in prevailing wage immediately if: (1) you receive a wage and hour investigation notice or subpoena; (2) a worker files a complaint alleging prevailing wage violation; (3) you discover you have underpaid workers on a covered project and are unsure of your obligations; (4) a subcontractor's payroll practices are questionable; or (5) you are facing potential debarment (ineligibility to bid federal contracts for three years). An attorney can help you calculate back wages accurately, negotiate with the DOL, and develop a remediation plan. Labor attorneys specializing in prevailing wage can also review your compliance procedures before problems arise.