# How to Read a Davis-Bacon Wage Determination Before You Bid, Not After You Win

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Author: Vojin Veselinovic, Founder, GovVictory (https://govvictory.com/)
Published: 2026-09-17
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## Direct answer

A Davis-Bacon wage determination is the U.S. Department of Labor's list of the minimum hourly wage and the minimum hourly fringe benefit you must pay each classification of worker on a federal construction job in one county. It arrives attached to the solicitation, it becomes part of the contract, and the rates are not negotiable. Your labor cost per hour is the basic rate plus the fringe, added together, before burden. Almost every guide to wage determinations is written for payroll staff after award. This one is written for the person deciding what to bid.

Almost every guide to wage determinations is written for payroll staff after the award. That is the wrong moment. By then the number is locked, the job is priced, and if you were short on labor you are paying the difference out of your margin for the life of the contract.

This guide is written for the person deciding what to bid.

## What is a Davis-Bacon wage determination?

A Davis-Bacon wage determination lists, for one county and one type of construction, the minimum basic hourly rate and the minimum hourly fringe benefit that must be paid to each classification of worker on the job. The U.S. Department of Labor describes it as "the listing of wage rates and fringe benefit rates for each classification of laborers and mechanics which the WHD Administrator has determined to be prevailing in a given area (usually a county) for a particular type of construction."

Two numbers per classification drive your bid. The basic hourly rate is the wage. The fringe is a separate hourly amount on top. **Your labor cost per hour is the two added together, before payroll burden.**

A bid built on the basic rate alone is short by the fringe on every hour, on every worker, for the whole job. That is the single most common and most expensive error in federal construction pricing, and it is entirely avoidable in the first ten minutes of reading the solicitation.

## Which of the four construction types applies to my job?

The U.S. Department of Labor sorts construction into four types, and the wrong type gives you the wrong rates. The gap between types is routinely larger than a small contractor's margin.

| Construction type | The Department of Labor's own words |
|---|---|
| Building | "construction, rehabilitation and repair of sheltered enclosures with walk-in access for the purpose of housing persons, machinery, equipment, or supplies" |
| Residential | "construction, rehabilitation, and repair of single family houses, townhouses, and apartment buildings of no more than four (4) stories in height" |
| Highway | "construction, alteration or repair of roads, streets, highways, runways, parking areas and most other paving work not incidental to building or heavy construction" |
| Heavy | a "catch-all" category covering "those projects which cannot be classified as Building, Residential or Highway" |

Source: U.S. Department of Labor, Prevailing Wage Resource Book, Davis-Bacon Wage Determinations, read on 2026-09-17.

Determinations are geographic. The Department of Labor makes them on a county-by-county basis, and the contracting agency identifies the state and county where the work happens. A rate you used on a job two counties over tells you nothing about this one.

One solicitation can carry more than one determination. A renovation inside an occupied building is building construction. Repaving the lot outside it is highway construction, because the Department of Labor puts parking areas and most other paving work not incidental to building or heavy construction into highway. Count the attached determinations before you price anything.

## General wage determination or project wage determination?

A general wage determination applies to most United States counties for each type of construction. A project wage determination is issued case by case, typically where a project spans multiple counties, where no general determination covers the area, or where the work is specialized.

The practical difference for a bidder: a project wage determination was written for your job specifically. Nothing you have seen on other work in that county carries over.

## How do I turn a wage determination into a number in my bid?

Work the determination before you work the estimate. Six steps, in this order.

1. **Find every attached determination.** Open the solicitation attachment list and count them. More than one means more than one construction type on the job.
2. **Confirm the construction type and the county** on each determination against the actual place and scope of work. A mismatch here invalidates everything downstream.
3. **List the classifications you will actually use**, from your own crew plan, not from the determination.
4. **Match each one to a listed classification.** Write down the basic rate and the fringe separately for each.
5. **Add basic plus fringe to get your raw hourly labor cost**, then apply your burden on top of that combined figure.
6. **Flag any classification you cannot match.** That is a conformance item, and it is a risk you carry into the bid.

### A worked example

Take one worker, 1,000 hours on the job. Suppose the determination lists a basic rate of $28.40 and a fringe of $12.15 for that classification. These figures are illustrative and are not taken from any live determination.

- Priced on the basic rate alone: 1,000 × $28.40 = **$28,400**
- Priced correctly: 1,000 × ($28.40 + $12.15) = 1,000 × $40.55 = **$40,550**

The gap is **$12,150 on one worker**, before burden. Put six workers on that job and the same mistake costs $72,900. That is not a pricing refinement. On most small federal construction jobs it is the entire profit.

## What happens when the classification I need is not listed?

You go through conformance. FAR 52.222-6 requires the contracting officer to have any class of laborers or mechanics not listed in the wage determination classified in conformance with it.

A conformed classification must satisfy three tests, in the clause's own terms:

1. "The work to be performed by the classification requested is not performed by a classification in the wage determination."
2. "The classification is utilized in the area by the construction industry."
3. "The proposed wage rate, including any bona fide fringe benefits, bears a reasonable relationship to the wage rates contained in the wage determination."

The Administrator of the Wage and Hour Division "will approve, modify, or disapprove every additional classification action within 30 days of receipt", or tells the contracting officer more time is needed.

Read the timing carefully. Conformance runs after award. At bid time you are estimating a rate that a third party will set later, and they can modify what you propose. If a meaningful share of your hours sit in an unlisted classification, that is a priced risk, not a rounding error.

## Do I have to pay the fringe in cash?

No. FAR 52.222-6 states that the contractor "shall either pay the benefit as stated in the wage determination or shall pay another bona fide fringe benefit or an hourly cash equivalent thereof."

You can deliver the fringe as genuine benefits, as cash in the paycheck, or as a combination. What you cannot do is omit it. For bidding purposes the delivery method does not change your cost. The fringe is owed on every hour either way.

## Can the rates change after I price the job?

Yes, and two rules in FAR 22.404-6 decide when.

**Before bid opening.** A modification is effective if it "is received by the contracting agency, or is published on the Wage Determinations at SAM.gov, 10 or more calendar days before the date of bid opening." If it arrives with fewer than 10 days left, it still applies "unless the contracting officer finds that there is not reasonable time available before bid opening to notify the prospective bidders", and that finding must be documented in the contract file.

**After bid opening.** "If an award is not made within 90 days after bid opening, any modification to a general wage determination which is published on the Wage Determinations at SAM.gov before award, shall be effective for any resultant contract", unless the agency obtains an extension from the Administrator of the Wage and Hour Division.

The consequence is easy to miss and expensive to learn. A slow award is not a neutral event. If the government takes more than 90 days to award and the determination moves in that window, your labor cost moves with it on a price you already submitted.

## Check the determination again before you submit

Re-open the wage determination on the day you finalize your price, not the day you started. Confirm the version number and date on the determination attached to the current amendment, not the one you downloaded when the solicitation first posted. Amendments change attachments, and a wage determination is an attachment.

## What this guide does not cover

This is the bid-side read. It does not cover what happens after you win: certified payroll on form WH-347, weekly submission, wage-rate posting at the site, apprentice ratios, or the interaction between Davis-Bacon and the Service Contract Act on a contract that carries both. Those are separate jobs with separate rules and they deserve their own treatment.

It also does not tell you what the prevailing rates are in your county. Nobody can, from a blog post. Rates change and they are county-specific. Pull the live determination from Wage Determinations at SAM.gov every time.

## The next step in the job

Open the solicitation you are looking at right now and count the wage determinations attached to the current amendment. If the count is not what you expected, or if a classification on your crew plan is not on the list, you have found the problem while you can still price it.

## Questions people ask

### Do I have to pay the fringe benefit in cash?

No. FAR 52.222-6 states that the contractor shall either pay the benefit as stated in the wage determination or shall pay another bona fide fringe benefit or an hourly cash equivalent thereof. You may deliver it as real benefits, as cash on the paycheck, or as a mix. What you may not do is leave it out. The fringe is owed on every hour worked, and for bidding purposes it is simply part of your hourly labor cost.

### What if the classification I need is not on the wage determination?

You use the conformance process. FAR 52.222-6 requires the contracting officer to have any class of laborers or mechanics not listed in the wage determination classified in conformance with it. A conformed classification has to meet three tests: the work is not already performed by a listed classification, the classification is used in the area by the construction industry, and the proposed rate including bona fide fringe benefits bears a reasonable relationship to the rates already in the determination. The Administrator of the Wage and Hour Division approves, modifies or disapproves within 30 days of receipt, or notifies the contracting officer that more time is needed. Conformance happens after award, so at bid time you are estimating a rate you do not yet control. Price that risk.

### Can the wage determination change between the day I start pricing and the day I sign?

Yes, and there are two specific rules. Under FAR 22.404-6, a modification is effective if it is received by the contracting agency or published on SAM.gov 10 or more calendar days before bid opening. If it lands with fewer than 10 days to go it is still effective unless the contracting officer finds there is not reasonable time to notify bidders, and that finding has to be written into the contract file. Separately, if award is not made within 90 days after bid opening, any modification to a general wage determination published before award becomes effective for the resulting contract, unless the agency gets an extension from the Administrator of the Wage and Hour Division. A slow award can move your labor cost after you have already priced the job.

### Which wage determination applies if my job has both a building and a car park?

Both. The U.S. Department of Labor sorts construction into building, residential, highway and heavy, and a single solicitation can carry more than one determination when the work spans types. Renovating inside an occupied building is building construction. Repaving the parking area outside it is highway construction, which the Department of Labor defines to include parking areas and most other paving work not incidental to building or heavy construction. Read the attachment list before you price a single line, and check how many determinations are actually attached.

### What is the difference between a general wage determination and a project wage determination?

A general wage determination applies to most United States counties for each type of construction and is updated on a rolling basis. A project wage determination is issued case by case for an individual project, typically where the work spans multiple counties, where no general determination exists for that area, or where the circumstances are specialized. If your solicitation carries a project wage determination, it was written for that job, so do not assume rates you have seen on other jobs in the same county apply.

## Sources

Primary sources only. Each is stamped with the date we last read it.

- U.S. Department of Labor, Prevailing Wage Resource Book, Davis-Bacon Wage Determinations — https://www.dol.gov/agencies/whd/government-contracts/prevailing-wage-resource-book/db-wage-determinations (read on 2026-09-17)
- FAR 52.222-6, Construction Wage Rate Requirements — https://www.acquisition.gov/far/52.222-6 (read on 2026-09-17)
- FAR 22.404-6, Modifications of wage determinations — https://www.acquisition.gov/far/22.404-6 (read on 2026-09-17)
- Wage Determinations at SAM.gov — https://sam.gov/content/wage-determinations (read on 2026-09-17)

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