Davis-Bacon Act: What Small Contractors Need to Know About Prevailing Wage

If you bid public work, prevailing wage is not optional.

The Davis-Bacon Act and its related statutes require contractors on federally funded projects to pay workers at minimum wage rates set by the U.S. Department of Labor, and those rates are often significantly higher than market rates in many areas.

Getting it wrong isn't just a compliance problem. It can result in contract termination, debarment from future federal projects, and significant back-pay liability.

This guide is written for small specialty contractors who encounter prevailing wage requirements in public bid packages but may not have a compliance department to guide them through it.

What Is the Davis-Bacon Act?

The Davis-Bacon Act (1931) requires contractors and subcontractors working on federally funded construction projects over $2,000 to pay their workers wages and fringe benefits at least equal to the prevailing wage rates in the area where the project is located.

These rates are set by the U.S. Department of Labor (DOL) and published as wage determinations. They vary by:

Location: county or metropolitan area
Work classification: Electrician, Sheet Metal Worker, Carpenter, Laborer, Plumber, etc.
Type of construction: building, heavy, highway, or residential

Separate from the straight hourly wage, Davis-Bacon requires payment of fringe benefits, such as retirement contributions, health insurance, vacation, and apprenticeship training, either through a bona fide benefit plan or in cash on top of the hourly rate.

When Does Davis-Bacon Apply?

Davis-Bacon applies when:

The contract is for construction, alteration, or repair
The project is funded in whole or in part by the federal government
The contract value exceeds $2,000

The $2,000 threshold is so low it's essentially always met. The key trigger is federal funding. This includes:

HUD-funded projects: public housing, community development block grants (CDBG)
FHWA-funded projects: federal highway and transportation funding
USDA-funded projects: rural development, rural utilities
EPA-funded projects: water and wastewater infrastructure
Education grants: school facility improvements using federal education funds
Homeland Security and FEMA: disaster recovery construction projects

Many state and local public projects receive partial federal funding and may not advertise this prominently. The wage determination in the bid documents is often the clearest signal that Davis-Bacon applies.

Davis-Bacon Related Acts

Davis-Bacon doesn't stand alone. Several related acts extend prevailing wage requirements to additional sectors:

Copeland Anti-Kickback Act: prohibits requiring workers to kick back any portion of their wages; requires certified payroll submission
Contract Work Hours and Safety Standards Act (CWHSSA): requires overtime pay (1.5x) for hours worked over 40/week on covered contracts over $100,000
Service Contract Act (SCA): a separate law that covers service contracts (maintenance, operation), not construction
McNamara-O'Hara Service Contract Act: applies to service work on federal buildings, not construction

For construction contractors, the core is Davis-Bacon plus Copeland. If you're doing construction work on a federally funded project over $2,000, these apply.

What Is a Wage Determination?

A wage determination (WD) is the official document that specifies the required wage rates and fringe benefits for each labor classification in a specific geographic area and construction type. The wage determination for your project is supposed to be incorporated into the contract documents.

In bid packages, wage determinations typically appear as:

An exhibit or attachment to the special conditions
A separate appendix in the project manual
A referenced document in the contract general conditions

The wage determination identifies every relevant work classification and its required basic hourly rate and fringe benefit rate. For example:

Electrician (Building Construction): $48.50/hour + $18.75/hour fringe benefits

This means you must pay electricians a minimum of $48.50/hour in cash wages, plus at least $18.75/hour in qualifying fringe benefits, or $67.25/hour total cash if no fringe benefit plan exists.

Fringe Benefits Under Davis-Bacon

This is where many small contractors underestimate their costs. Davis-Bacon requires fringe benefits on top of the base hourly wage.

If you don't have a qualifying fringe benefit plan (health insurance, retirement contributions, etc.), you must pay the full fringe benefit amount in cash to the worker.

For example: if the WD rate is $50/hour base + $20/hour fringe, and you don't have a qualifying benefit plan:

You must pay $70/hour total to the worker in cash
Not $50/hour with a handshake promise about benefits

Qualifying benefit plans must be bona fide, meaning contributions must actually be made to a third-party plan. Promises to pay don't qualify.

Certified Payroll Requirements

The Copeland Anti-Kickback Act requires weekly submission of certified payroll reports on Davis-Bacon projects. The standard form is WH-347, but some owners use their own format.

Certified payroll reports must include:

Worker name and employee identifier (often partial SSN or ID number)
Work classification
Hours worked each day and week
Hourly rate and fringe benefits paid
Net wages paid
A signed statement of compliance

Payroll reports must be submitted weekly to the contracting agency or prime contractor (for subcontractors). Late or missing certified payroll is a common compliance violation and can result in payment being withheld.

Apprentice and Trainee Rates

Workers in registered apprenticeship programs can be paid at apprentice wage rates, which are lower than journeyman rates. But this only applies if:

The worker is enrolled in a DOL-registered apprenticeship program
The apprentice-to-journeyman ratio required by the apprenticeship standards is maintained
The apprenticeship program is in the same classification as the work being performed

If a worker is called an apprentice but is not in a DOL-registered program, they must be paid at the full journeyman rate.

State Prevailing Wage Laws

Davis-Bacon covers federally funded projects. But many states have their own prevailing wage laws, sometimes called "little Davis-Bacon" acts, that apply to state-funded projects. These vary significantly:

States with broad prevailing wage laws (California, New York, New Jersey, Ohio, etc.): apply to essentially all public construction above very low thresholds
States with limited prevailing wage laws: apply only to certain project types or dollar amounts
States with no prevailing wage laws (Alabama, Arizona, Georgia, etc.): state-funded projects may have no prevailing wage requirement

Even in states without a law, if the project receives any federal money, federal Davis-Bacon still applies.

What Happens If You Get It Wrong?

The consequences of Davis-Bacon violations can be severe:

Back wages: you owe workers the difference between what you paid and what Davis-Bacon required, for every affected worker on every covered project
Liquidated damages: under CWHSSA, $28/day per worker violation for unpaid overtime
Contract termination: the owner can terminate the contract for Davis-Bacon violations
Debarment: contractors found to have knowingly violated Davis-Bacon can be debarred from all federal contracts for up to three years
Criminal penalties: in cases of willful falsification of certified payroll records

The DOL's Wage and Hour Division investigates violations, and claims can come from workers, subcontractors, or the contracting agency.

How to Find the Wage Determination for Your Project

The project's bid documents should include the applicable wage determination. If they don't, or if you want to verify it:

Look for the WD number in the bid documents (format: WDCA20240017 for California, for example)
Look up the current WD at sam.gov/wage-determinations (the official federal source)
Confirm the WD is current, as wage determinations are updated periodically and the version in the bid documents may have a cutoff date

If you can't find a wage determination in the bid documents on a project that appears to be federally funded, that's worth a pre-bid question to the owner.

Practical Steps for Small Contractors

If you're bidding a public project and Davis-Bacon may apply:

Confirm whether Davis-Bacon applies: look for a wage determination in the bid documents or check if federal funding is mentioned in the contract documents
Identify the applicable wage determinations: note the WD number and verify it's current
Identify your work classifications: match your actual work to the correct WD classifications
Price accordingly: Davis-Bacon wages and fringe benefits must be included in your labor cost estimates
Set up certified payroll: use a payroll system that can generate WH-347 reports weekly
Train your supervisors: field supervisors need to understand the reporting requirements

The biggest mistake small contractors make with Davis-Bacon is not realizing it applies until after they've won a contract and priced the work at market wages.

By that point, the cost difference can eliminate the profit margin entirely.

The Bottom Line

Davis-Bacon prevailing wage requirements appear in bid packages as wage determination attachments, but the full compliance burden they create, including classification accuracy, fringe benefit payment, and weekly certified payroll submission, is rarely explained in the bid documents themselves.

Before you submit a bid on a federally funded public project, confirm whether Davis-Bacon applies, price your labor at the required rates, and make sure you have systems in place to comply after award.

Getting it wrong after you've won the contract is far more expensive than passing on a project you can't profitably execute.