Prevailing Wage Requirements in Arizona: Government Contract Rules

The Davis-Bacon Act (40 U.S.C. § 3141) requires contractors and subcontractors on federally-funded construction projects to pay workers not less than the prevailing wage rate determined by the U.S. Department of Labor. The law applies to projects receiving federal funds through agencies including HUD, the Department of Transportation, the General Services Administration, and the Department of Defense, among others. Covered projects must exceed $2,000 in federal funding.

Prevailing wage rates are set for each county and job classification and include hourly wages, fringe benefits (health insurance, pension contributions, vacation pay), and overtime requirements. The DOL publishes wage determinations by state, county, and construction type (building, highway, etc.). Employers must pay the highest rate that applies to the worker's actual job duties, not necessarily their job title.

The Davis-Bacon Act is enforced by the U.S. Department of Labor's Wage and Hour Division. Violations result in unpaid wages owed to workers plus penalties of up to 10% of the contract price withheld by the federal agency. Contractors may be debarred from future federal contracts for willful violations. Workers may also bring private actions for wage recovery under the law.

Arizona has no separate state prevailing wage statute. Arizona Revised Statutes Title 34 contains Arizona's general labor laws but does not require prevailing wages on state or local public works projects. Therefore, contractors in Arizona are subject only to federal prevailing wage requirements under the Davis-Bacon Act and related federal prevailing wage laws (such as the Service Contract Act for federal service contracts).

Because Arizona lacks a state prevailing wage law, workers on state-funded Arizona projects are protected only by the federal minimum wage and overtime rules under the Fair Labor Standards Act (29 U.S.C. § 206 et seq.), not by prevailing wage. This means Arizona state-funded projects and many local government projects do not trigger prevailing wage obligations, even if they are substantial public works. The absence of a state law means Arizona employers have weaker wage protections for public works than states with their own prevailing wage statutes (e.g., California, New York, Illinois).

However, when federal funds are involved—even in combination with state or local funds—the Davis-Bacon Act applies to any federally-funded portion of the project. Arizona contractors must therefore carefully examine the funding source of any public works project. If any portion comes from federal sources and the total federal contribution exceeds $2,000, prevailing wage requirements are triggered. Employers must post the applicable prevailing wage determination and pay workers accordingly, regardless of state law.

Arizona's lack of a state prevailing wage law creates a significant gap: private construction projects and most state or local government projects in Arizona are exempt from prevailing wage requirements. Even large public works projects funded solely by Arizona state or local funds do not trigger prevailing wage unless they involve federal funding.

Federal prevailing wage applies only when federal funds are involved. Common federal funding sources include HUD community development grants, federal transportation funds (including highway projects), GSA projects, Department of Defense contracts, and federal grants to local agencies. If a project is purely private or entirely state/locally funded with no federal component, Davis-Bacon does not apply.

Small projects under $2,000 in federal funding are exempt from Davis-Bacon. Additionally, certain types of federal funding carry their own prevailing wage rules. For example, the Service Contract Act applies to federal service contracts, and the Public Works Employment Act applies to certain federal public works. Private employers on non-federally-funded projects are subject only to Arizona minimum wage and federal minimum wage (whichever is higher), currently $14.35 per hour in Arizona as of 2024.

Collective bargaining agreements may specify wage floors that exceed prevailing wage, but these are contractual obligations between union and employer, not legal prevailing wage requirements. If a contractor has negotiated union rates above prevailing wage, the higher rate applies. Apprentices and certain trainees may be exempt from full prevailing wage rates under specific DOL-approved apprenticeship programs, but only if the apprentice is registered in a program meeting federal standards.

Step 1: Document wage practices and project funding. Maintain copies of all paychecks, time records, and project contracts showing the federal funding source and amount. Keep records of the prevailing wage determination posted at the project site, the wage rates you were told applied, and what you were actually paid. If working as a subcontractor or lower-tier employee, collect any written communications regarding wage terms. Take photos of wage postings at the project site, as federal law requires contractors to post the prevailing wage determination where workers can see it.

Step 2: Attempt internal resolution if possible. Notify your contractor's payroll or project manager in writing (email is acceptable) that you believe prevailing wage rates were not paid correctly. Request a written explanation of the wage calculation and the prevailing wage rate that was applied to your position. Keep copies of all communications. Many violations are inadvertent miscalculations or misclassification of job duties. A clear written request often prompts correction without formal complaint. Document whether the contractor responds, refuses to respond, or corrects the issue.

Step 3: File a complaint with the U.S. Department of Labor, Wage and Hour Division. Visit www.dol.gov/agencies/whd or call the Phoenix District Office of the Wage and Hour Division at 602-514-7176. You may also contact the federal agency overseeing the project (e.g., HUD, DOT, GSA). No specific deadline exists for filing a prevailing wage complaint, but federal regulations allow back pay recovery for up to three years of unpaid wages under federal law. Provide the contractor name, project name and location, your job title, dates of work, and copies of paychecks. Include the prevailing wage determination number if you have it.

Step 4: Expect DOL investigation. The Wage and Hour Division will typically contact the contractor to request payroll records, project documentation, and the prevailing wage determination that applied. The investigation may take 2-6 months depending on case complexity. DOL investigators will compare your actual pay to the prevailing wage rate for your job classification on the project. If a violation is found, DOL will demand the contractor pay restitution to you for back wages plus interest. The federal agency overseeing the project may also withhold contract payments to cover the owed wages.

Step 5: Consult an employment attorney if the DOL investigation is delayed, the contractor disputes the violation, or if retaliation occurs. Contact the U.S. Department of Labor's Office of Inspector General or the Arizona Attorney General's office if you believe the contractor retaliated against you for complaining. An attorney can help you file a private lawsuit for back pay, and many prevailing wage attorneys work on contingency. Arizona has strong retaliation protections under federal whistleblower laws for workers who complain about prevailing wage violations on federal contracts.