Prevailing Wage

Prevailing wage in federal construction is the minimum hourly wage and fringe benefit rate that contractors and their subcontractors must pay to laborers and mechanics on federally funded construction projects, established by the Department of Labor under the Davis-Bacon Act of 1931.

What is Prevailing Wage in Federal Construction?

The Davis-Bacon Act (40 U.S.C. §§ 3141-3148) requires that all laborers and mechanics employed on federal construction, alteration, or repair contracts above $2,000 be paid the "prevailing wages" for corresponding classes of laborers and mechanics employed on projects of a similar character in the locality where the work is performed.

The Department of Labor's Wage and Hour Division determines prevailing wages by conducting surveys of wages paid in specific geographical areas for specific construction trade classifications. These determinations, called Wage Determinations, are published on the SAM.gov system and must be incorporated into every covered federal construction solicitation and contract. Contracting officers include the appropriate Wage Determination (by county and construction type: building, heavy, highway, or residential) in the solicitation package.

Prevailing wage rates vary significantly by trade, location, and construction type. A concrete finisher in San Francisco may have a prevailing wage significantly higher than the same trade classification in rural Mississippi. Proposals must be priced to include these wage obligations, contractors who fail to account for them in their bid pricing may find themselves paying labor costs far exceeding their bid assumptions.

Fringe benefits are a critical component of prevailing wage compliance. The Davis-Bacon fringe rate can be paid as cash above the base wage or as bona fide fringe benefits (health insurance, pension contributions, vacation). Contractors who provide genuine benefit packages can use the benefit costs to offset a portion of their fringe payment obligation, reducing their effective cash outlay.

Certified payroll reports (Standard Form 1444 / WH-347) must be submitted weekly to document compliance, listing each worker's classification, hours, rate, and deductions.

Why Prevailing Wage matters for government contractors

Davis-Bacon compliance failures can result in withholding of contract payments, back-wage liability for all covered workers, and potential debarment. Pricing proposals without accurately accounting for prevailing wage rates is one of the most common causes of construction contract losses and performance failures.

Example

A contractor bids on a $4M federal building renovation in Chicago. The applicable Davis-Bacon Wage Determination lists electricians at $58.25/hour base plus $22.15/hour fringe. The contractor employs 8 electricians for 12 months. Failing to include the full $80.40 all-in labor rate in the estimate rather than the $35/hour market rate for non-union labor would create an $800,000+ cost underestimate, a potentially fatal bid error.

Frequently Asked Questions

How do I find the correct Wage Determination for my project?

Wage Determinations are published on SAM.gov's Wage Determinations Online (WDOL) system. You can search by state, county, and construction type. The contracting officer will incorporate the correct determination in the solicitation, but contractors should verify they are using current rates during proposal pricing.

Does prevailing wage apply to subcontractors?

Yes. The prime contractor is responsible for ensuring all subcontractors and lower-tier subcontractors comply with Davis-Bacon. The prime must include the Davis-Bacon clause in all subcontracts and obtain certified payroll reports from each subcontractor. If a subcontractor underpays workers, the prime is liable.

What is a conformance request and when is it needed?

A conformance request is filed when a contractor needs to use a worker classification not listed in the applicable Wage Determination. The contractor requests the Wage and Hour Division to establish a rate for the unlisted classification. Conformances can take weeks to months to process and should be initiated early in project mobilization.

Can prevailing wage requirements be satisfied with union labor rates?

Union collective bargaining agreements set rates that may meet or exceed prevailing wage requirements. Contractors who employ union labor and pay the applicable union rates generally satisfy Davis-Bacon, but must verify that the CBA rates are at least equal to the Wage Determination rates for each covered classification.