Under the federal Davis-Bacon Act, certified payroll reporting on Form WH-347 covers only laborers and mechanics working at the site of a federally funded construction contract worth more than $2,000. Anyone outside that description is exempt from certified payroll reporting: workers on smaller contracts, bona fide executive, administrative, and professional employees, material suppliers, staff who never work at the site, and everyone on a project built entirely with private money. The details below spell out where each boundary sits and where contractors most often misread it.
Contracts at or Below $2,000
Davis-Bacon prevailing wage and reporting obligations attach only when a federal construction contract exceeds $2,000. A contract at or below that figure is exempt from both the wage determination and the weekly WH-347 filing.1Office of the Law Revision Counsel. 40 USC 3142 – Rate of Wages for Laborers and Mechanics Small repairs and minor maintenance work for a federal agency often fall under this line.
The threshold looks at the total value of the prime contract, not individual invoices. If a change order pushes the total above $2,000, reporting begins at that point and weekly payrolls need to start immediately. Track amendments closely, because crossing the line mid-project is easy to miss.
State prevailing wage laws are a separate matter. Some states trigger their own reporting at $0, others at figures well above the federal threshold, and roughly half have no such law at all. If state or local money is in the project, check those rules independently.
Executive, Administrative, and Professional Employees
Certified payroll covers laborers and mechanics, meaning workers performing physical or manual construction tasks. Employees in bona fide executive, administrative, or professional roles are not laborers or mechanics and do not appear on the report.2eCFR. 29 CFR Part 5 Subpart A – Davis-Bacon and Related Acts Provisions and Procedures To claim the exemption, the employee must meet the Fair Labor Standards Act’s white-collar tests.
- Executive: primary duty is managing the business or a department, and the employee regularly supervises at least two other workers.
- Administrative: office or non-manual work directly related to business operations or management.
- Professional: work requiring advanced knowledge in a specialized field, typically acquired through prolonged study.
Each category also requires salary-basis pay of at least $684 per week, or $35,568 per year. The Department of Labor tried to raise that floor in 2024, but a federal court vacated the increase in November 2024, and the $684 figure is what DOL enforces.3U.S. Department of Labor. Earnings Thresholds for Executive, Administrative, and Professional Exemptions
Working Supervisors Are Only Partially Exempt
A supervisor or foreperson who spends more than 20 percent of the workweek on hands-on laborer or mechanic duties, and who does not otherwise meet the white-collar tests, is treated as a laborer or mechanic for that manual time.2eCFR. 29 CFR Part 5 Subpart A – Davis-Bacon and Related Acts Provisions and Procedures Those hours belong on the certified payroll at the applicable prevailing wage rate. Time records that split management from tool time are what protect the exemption during an audit.
Material Suppliers
A company whose role is limited to selling and delivering construction materials, such as lumber, gravel, concrete, or hardware, is a material supplier and is exempt from certified payroll.4U.S. Department of Labor. Davis-Bacon and Related Acts Coverage Time drivers spend at the site loading or unloading does not by itself trigger coverage, provided the supplier meets every part of the test:
- On-site work is limited to delivering, picking up, loading, or unloading materials.
- The facility where the materials are made or stored is not on the construction site.
- That facility either existed before bids opened or is not dedicated almost exclusively to the one project.
Cross any of those lines and the classification shifts. If supplier employees perform actual construction, installation, or assembly work at the site, the company becomes a subcontractor. Its laborers and mechanics on the project then owe prevailing wages and belong on the weekly certified payroll.4U.S. Department of Labor. Davis-Bacon and Related Acts Coverage
Workers Away From the Site of Work
Coverage reaches only workers performing tasks at the “site of the work.” Federal regulations define that term to include three kinds of locations:5eCFR. 29 CFR 5.2 – Definitions
- The primary construction site where the finished structure will remain.
- A secondary site where a significant portion of the building (an entire room or module, for instance) is built specifically for the project at a facility set up for or dedicated almost exclusively to it.
- Adjacent dedicated support sites — job headquarters, tool yards, batch plants, or borrow pits — that are dedicated almost entirely to the project and located next to or very near a primary or secondary site.
Workers at any location that does not fit one of those three categories are outside the site of work and off the certified payroll. A permanent fabrication shop that was operating before the project began and serves other customers is the classic example. Home-office staff and employees at a general-purpose branch facility fall on the same side of the line.5eCFR. 29 CFR 5.2 – Definitions
Truck Drivers and the De Minimis Rule
Truck drivers are a frequent gray area. A driver who pulls onto the site, drops a load, and leaves within a few minutes is generally treated as spending a de minimis amount of time on site and is not covered.4U.S. Department of Labor. Davis-Bacon and Related Acts Coverage A driver who spends more than that — waiting for extended periods while material is loaded or unloaded, for example — is covered and belongs on the report.
DOL aggregates on-site time across the workday or workweek. Several short visits that each look trivial can add up to more than de minimis when combined, so short drop-ins are worth logging.4U.S. Department of Labor. Davis-Bacon and Related Acts Coverage
Bona Fide Owner-Operators of Trucks
Individuals who own and personally drive their own trucks get a reduced reporting rule rather than a full exemption. They must appear on the certified payroll, but the entry only needs to show the person’s name and the notation “owner-operator.” Hours and pay rates are not required.6U.S. Department of Labor. Certified Payrolls and Use of Electronic Signatures This simplified treatment is specific to truck owner-operators. Owners of bulldozers, cranes, backhoes, and other heavy equipment do not get the same shortcut and must be reported in full when they perform covered work on site.
Projects Funded Entirely by Private Money
Davis-Bacon and its related statutes apply only when federal money touches the construction. A project financed entirely with private funds, whether commercial, residential, or industrial, is outside the federal prevailing wage and reporting scheme.
The trap is that federal involvement does not have to mean a direct federal purchase. Grants, loans, loan guarantees, and federal insurance programs can pull a project under Davis-Bacon through one of the many “Related Acts” that incorporate its labor standards.7U.S. Department of Labor. Fact Sheet 66 – The Davis-Bacon and Related Acts A privately developed housing project financed in part with Community Development Block Grant funds or a federally guaranteed loan can be covered. Once a Related Act is triggered, the requirements can reach the entire project rather than only the federally funded portion. Verify funding sources during bidding, because catching up on missed weekly payrolls after the fact is not straightforward.
Why the Exemption Analysis Has to Be Documented
Claiming an exemption is not the same as proving one. A contractor who leaves someone off the certified payroll on the theory that they’re a supplier, a supervisor, or a shop employee needs the records to back it up. DOL can withhold contract payments to cover unpaid wages, suspend future payments, and reach across to funds owed on the contractor’s other federal or federally assisted contracts to satisfy back wages.8eCFR. 29 CFR Part 5 – Labor Standards Provisions Applicable to Federally Financed and Assisted Construction Disregard of worker obligations can result in a three-year debarment from new federal contracts and subcontracts, extending to responsible officers and other businesses they have an interest in.9Office of the Law Revision Counsel. 40 USC 3144 – Authority to Pay Wages and List Contractors Violating Contracts The Statement of Compliance signed with each WH-347 also puts the contractor on the hook under 18 U.S.C. § 1001 for false statements, punishable by fine, up to five years in prison, or both.10Office of the Law Revision Counsel. 40 USC 3145 – Regulations Governing Contractors and Subcontractors
Keep payroll records and the paperwork supporting each exemption — job descriptions and salary records for white-collar staff, time logs for working supervisors, delivery documentation for suppliers — for at least three years after all work on the prime contract is finished.11U.S. Department of Labor. Investigative Procedures and Remedies on Davis-Bacon Contracts If an audit comes later, those files are what turn a claimed exemption into a defensible one.