Payroll

Arizona prevailing wage and certified payroll rules

Arizona has no state prevailing wage law, and state law (A.R.S. 34-321) bars state agencies and local governments from requiring prevailing wages on public works contracts. Federally funded jobs over $2,000 still follow Davis-Bacon.

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Review invoices, committed costs, and cash timing together before making project decisions. AI-generated illustration.

Arizona does not have a state prevailing wage law, and it goes a step further than most states without one. Arizona Revised Statutes 34-321 says state agencies and political subdivisions may not, by regulation, ordinance, or any other means, require public works contracts to include a prevailing wage provision. The U.S. Department of Labor notes Arizona's law was invalidated by a 1980 court decision and repealed by referendum in 1984. Federal work is different: if a job is federally funded or assisted and over $2,000, the Davis-Bacon Act rates and weekly certified payroll still apply.

Arizona prevailing wage at a glance
RuleArizona
State prevailing wage lawNone. Invalidated by a 1980 court decision, repealed by referendum in 1984
Local prevailing wage ordinancesBarred by A.R.S. 34-321(B) for state agencies and political subdivisions
Project labor agreements and apprenticeship mandatesAgencies may not require them as a bid or award condition, per A.R.S. 34-321(C)
Federally funded or assisted workDavis-Bacon applies to contracts over $2,000
Who sets rates on federal jobsU.S. Department of Labor, through wage determinations on SAM.gov
Certified payrollWeekly on Davis-Bacon jobs; no state form or portal

What A.R.S. 34-321 actually says

The statute opens by declaring that wage rates on public works contracts are a matter of statewide concern, not just local concern. That framing is what lets it override city charters. Subsection B then bars any state agency or political subdivision from requiring that public works contracts make contractors or subcontractors pay at least the prevailing rate of wages for similar work where the project is located.

The definitions are broad. A political subdivision includes cities, charter cities, towns, counties, school districts, community college districts, multi-county water conservation districts, industrial development authorities, and primarily tax-supported special taxing districts. A public works contract is any contract the state or a political subdivision is a party to that involves workers in the construction, alteration, or repair of public buildings or improvements.

Labor agreements and apprenticeship rules on Arizona public work

Subsection C covers more than wages. An agency or political subdivision may not make any of the following a requirement or a factor in bidding, negotiating, award, or performance of a public works contract, whether for contractors, subcontractors, material suppliers, or carriers:

  • Signing or becoming party to a project labor agreement or similar agreement with a labor organization or employees.
  • Entering a neutrality agreement with a labor organization.
  • Participating in or contributing to an apprenticeship program registered with the U.S. Department of Labor.

Subsection D keeps private parties free to form their own collective bargaining relationships and leaves activity protected by federal law, including the National Labor Relations Act, alone. So a union contractor still pays its agreement rates on an Arizona public job. The point is that the public owner cannot make that a condition of the bid.

When federal Davis-Bacon applies in Arizona

Nothing in A.R.S. 34-321 overrides federal law. The U.S. Department of Labor says Davis-Bacon covers contractors and subcontractors on federally funded or assisted contracts over $2,000 for construction, alteration, or repair of public buildings or public works, and the Related Acts extend it to projects paid for with federal grants, loans, loan guarantees, and insurance.

So the same city can award two jobs in the same month with different wage rules. Say a Phoenix-area city lets a $600,000 park restroom project from its own capital fund and a $1,400,000 water line job partly funded by a federal grant. The first has no wage floor beyond normal wage law. The second carries a federal wage determination and weekly payroll for every tier. Read the funding section of the bid documents before you price labor.

Rates and certified payroll on Arizona federal jobs

Arizona has no state rate schedule. On a federal job, use the Davis-Bacon determination in the bid documents. The Department of Labor posts these on SAM.gov by county and construction type, so the rates for a Maricopa County building job and a highway job in a rural county will not match. Each classification lists a base rate and a fringe benefits amount, and you need both in your bid.

Certified payroll is weekly. The Department of Labor says the WH-347 is optional, but the weekly payroll information and a signed Statement of Compliance are required. Payrolls go to the federal agency when it is a party to the contract, or to the owner or grantee that keeps the records for the funding agency. Subs report their own workers; the prime collects and reviews them.

Other Arizona rules to check before bidding public work

With no state wage law, the bigger compliance items on Arizona public work are usually licensing, bonds, and payment terms. Review the Arizona contractor license requirements, your Arizona mechanics lien and payment bond rights, and the Arizona prompt payment rules. For comparison, California next door runs one of the strictest state systems in the country, so crews that work both sides of the border need two very different routines.

Smart Business Automator tags each job by funding type and prepares weekly certified payroll only where it applies, from the same time cards as everything else. See certified payroll automation.

Frequently asked questions

Does Arizona have a prevailing wage law?

No. The U.S. Department of Labor lists Arizona's law as invalidated by a 1980 court decision and repealed by referendum in 1984. A.R.S. 34-321 also bars state agencies and political subdivisions from requiring prevailing wages on public works contracts.

Can an Arizona city require prevailing wages on its own projects?

A.R.S. 34-321(B) says state agencies and political subdivisions, including cities and charter cities, may not require public works contracts to contain a prevailing wage provision by regulation, ordinance, or any other means.

Do Davis-Bacon rates apply in Arizona?

Yes, on federally funded or assisted construction contracts over $2,000. State law does not override federal requirements. Use the wage determination named in the bid documents.

Is there an Arizona certified payroll form?

No. On Davis-Bacon jobs, contractors submit weekly certified payroll to the federal agency or the owner. The federal WH-347 is optional as long as the same information and a signed Statement of Compliance are provided.

Can an Arizona public owner require a project labor agreement?

No. A.R.S. 34-321(C) bars agencies and political subdivisions from making a project labor agreement, a neutrality agreement, or registered apprenticeship participation a requirement or factor in bidding or awarding a public works contract.

Sources

  1. Arizona State Legislature: Arizona Revised Statutes 34-321
  2. U.S. Department of Labor, Wage and Hour Division: Dollar threshold amount for contract coverage under state prevailing wage laws
  3. U.S. Department of Labor, Wage and Hour Division: Construction (Davis-Bacon and Related Acts)
  4. U.S. Department of Labor, Wage and Hour Division: Form WH-347 instructions

Laws and rates change. Confirm current requirements with the state agency before you bid, file, or pay. This page is general information, not legal advice.

Written and edited by

Maurice Francois writes and edits construction operations guides for Smart Business Automator. More from Maurice on the Scaling Legends podcast.

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