Prevailing Wage vs Davis-Bacon: Which Rate Applies to Your Project

Davis-Bacon is federal prevailing wage. "Prevailing wage" is the umbrella term; the federal Davis-Bacon Act of 1931 is one law under it, and about half the states run their own version. Which rate you owe turns on a single question: who is paying for the job. Federal money triggers Davis-Bacon. State or local money triggers the state law. When both fund the same project, you pay the higher of the two rates for each classification. Pull only the federal number off SAM.gov for a job in California or New York, and you can underpay the whole crew.

That is the entire prevailing wage vs Davis Bacon question, and most shops still get burned by it. This page gives you three things. First, the routing model: federal-only, state, or both. Second, the higher-of rule when two jurisdictions overlap. Third, a checklist for spotting a prevailing-wage job before you bid, so you are never the shop that finds out after the concrete is poured.

Is Davis-Bacon the same as prevailing wage?

The prevailing wage vs Davis Bacon confusion is worth clearing up, because it drives which schedule you pull. Three tiers sit under the umbrella. Each stores its rate in a separate place.

The federal law never touched only direct federal contracts. Congress bolted prevailing-wage language onto roughly 60 assistance statutes (grants, loans, loan guarantees, and insurance), collectively the Related Acts (DOL Wage and Hour Division). That is why a locally built project can still be a Davis-Bacon project: HUD, highway, or water-infrastructure money carries the federal wage rule with it. A locally run but federally funded project is the trap.

Do prevailing wage laws vary by state?

Yes, heavily. About half of U.S. states, commonly counted at 26 to 30, keep their own prevailing-wage law, often called a "little Davis-Bacon" or "mini Davis-Bacon" act. These little Davis-Bacon acts set the state prevailing wage for public works, each with its own covered work and rates, at its own dollar thresholds. The rest have none, so there a purely state-funded project carries no prevailing wage at all; federal Davis-Bacon applies only when federal money is in the job. No memorized list stays current, so confirm your own state through its labor agency, listed in the DOL WHD State Labor Offices directory. Where federal applies, start from the Davis-Bacon wage rates index.

The strong-PW states carry the highest rates and the tightest enforcement: California, New York, Illinois, Pennsylvania, Washington, New Jersey, Oregon, Minnesota, Michigan, Connecticut, Missouri, and Massachusetts. Each administers its own schedule through a state labor agency (verify each via that same DOL State Labor Offices directory). California runs it through the DIR; the others through their state DOL. The federal trigger is any covered contract over $2,000 (DOL WHD); California's public-works threshold sits far lower at $1,000 (California DIR). The California prevailing wage page shows how one strong-PW state runs its own schedule. Some agencies also attach a project labor agreement (PLA) that sets wages above either schedule.

Other states have no prevailing-wage statute at all. Georgia, Florida, and North Carolina are clear examples, so a purely state- or locally-funded job there carries no wage floor beyond ordinary minimum-wage law. Add federal money and Davis-Bacon snaps into place; take it away and there is none. Do not classify a state by region or reputation, though. Texas and Tennessee, often assumed to have none, both carry a law: Texas Government Code Chapter 2258 (Texas statutes) requires the local prevailing rate on state and political-subdivision public works, and Tennessee's Prevailing Wage Act (Tenn. Code Ann. §12-4-401 et seq.) sets prevailing rates on state-funded construction — the Act's scope has been amended over the years, so confirm which project types it currently covers with the Tennessee Department of Labor. Verify your own state's statute before you assume a job carries no floor.

State prevailing-wage status is not regional and it changes. Verify your state's current law before assuming a job carries no floor.

Treat any state list as current today, not permanent. States repeal and reinstate: Michigan repealed its law in 2018 and reinstated it effective 2024, and Virginia enacted a new prevailing-wage law that took effect in 2021. Confirm your state's current status with its labor agency before you rely on it.

Which prevailing wage applies to my project?

Funding decides which rate applies. Not the type of work. Not the size of the owner. Route every job through the same four-way table before you price it.

A federally-assisted project in a strong-PW state lands you in the bottom row, and that row is where the money and the mistakes are. You honor two schedules at once, reconciling them line by line. When you pull the determination, how to read a wage determination breaks the table down field by field. The prevailing wage rates hub lets you compare a county's line against its neighbors.

Funding source plus state law decides your schedule. The costly row is 'both,' where you honor two schedules and the higher rate governs.

When both apply, the higher of the two rates governs

The rule sounds simple until you see that "higher" is decided per classification, not per project. The federal determination can win on one trade and lose on the next, so you cannot pick the state schedule wholesale and call it done. You compare line by line.

Here is the shape of it with illustrative numbers. These are examples, not live rates, so pull the real figures for your county and effective date:

On this job the electrician follows the state rate and the laborer follows the federal rate, on one site, in one week. Pull the live pair, such as the electrician rate in Los Angeles County. Miss that split and you underpay one trade while overpaying another. Overtime and fringe carry the same logic. If the state requires daily overtime after 8 hours, and the federal rule keys only to 40 in a week, you owe the state's daily premium. Run the leftover cash-fringe math per worker in the certified payroll calculator once you know which rate governs each line.

Why pulling only the federal SAM.gov number can underpay you

New York shows the mechanism plainly. Under §220, the state sets the rate for a trade to the collective-bargaining package. That kicks in once signatory employers cover at least 30% of the trade in the locality (NY DOL, Bureau of Public Work). As one veteran market analyst put it, "the number the public pays is the rate earned by the organized minority, not the rate most electricians earn." The federal Davis-Bacon survey, by contrast, measures wages actually paid across union and open shops alike. In a union-dense locality the state figure lands higher.

The practical failure is quiet. A payroll admin pulls a clean federal determination off SAM.gov, pays exactly that, and files a tidy WH-347. The crew is still short every hour, because the job also carried state coverage at a higher rate. The mistake was pulling one number when the job answered to two. That gap compounds into back wages the same way a flat-weekly fringe does, and in a strong-PW state it can dwarf a fringe slip. Of every prevailing wage vs Davis Bacon error, this one scales fastest. It belongs on any list of certified payroll mistakes that scale fast.

How to tell it's a prevailing-wage job before you bid: a checklist

Agencies do not always tell you. A project manager at a large Illinois contractor described bidding a concrete pour for a county housing authority the shop had worked with for years: "The woman at this housing authority never mentioned anything about this being a prevailing wage job nor did she mention that his project was federally funded... the problem is they weren't [paid prevailing wage], because we didn't know. How would we know?" Nothing in the signed contract said Davis-Bacon, federal funds, or prevailing wage. The paperwork, a Section 3 packet and a WH-347, arrived after the work was done. The underpayment was already baked in.

Catch it at the bid, not at the audit. Before you price the work, run this checklist:

• Ask the funding question in writing. "Is this project federally funded, federally assisted, or state/local public works? Which wage determination applies?" Keep the answer.
• Search the solicitation for a wage schedule. A SAM.gov wage-determination number, or a state schedule, attached to the bid docs is a coverage tell all by itself.
• Scan for federal-assistance flags. Section 3, HUD, CDBG, ARPA, IIJA, or "federally assisted" anywhere in the packet pulls Davis-Bacon into a locally-run job.
• Read the owner. A housing-authority, school-district, municipal, or state-DOT owner should be treated as public works until proven otherwise.
• Price the rate and the paperwork. Build the prevailing rate, the fringe, and the certified-payroll admin into the number before you sign, not after.

When any flag trips, treat the job as prevailing wage and confirm the exact schedule before payroll week one. The certified payroll workflow is far cheaper to set up at bid time than to reconstruct under a back-wage demand.

Who is exempt from Davis-Bacon wages?

Davis-Bacon covers laborers and mechanics (the people doing construction, alteration, or repair) on a covered federal contract over $2,000. The exemptions track that definition. Bona-fide executive, administrative, and professional employees paid on a salary basis fall outside it, as do timekeepers, inspectors, and other non-manual staff (29 CFR Part 5). Material suppliers who deliver to the site but do no construction there are exempt. The moment a supplier's crew installs or works on site, coverage can attach. Any contract at or under the $2,000 threshold is exempt outright.

Do not read exemption as a loophole for field labor. A working foreman who spends more than an incidental share of the week with the tools is owed the prevailing rate for those hours. When you are unsure whether a role is covered, price it as covered. The back-wage math runs one direction only.

Frequently asked questions

Verify the rate before you pay