What Prevailing Wage Changes About a Job You Already Know

Why this matters

Prevailing wage does not change the work. The pipe is the same pipe, the code is the same code, the parts come off the same shelf, and your best technician is still your best technician. What changes is the unit of record. On ordinary service work a shop records a day as hours and a job. On a covered project every hour has to attach to a project, to a labor classification, and to a calendar day, and it has to do so at the time it happens.

That sounds administrative until you look at how a service shop actually runs a day: two or three stops, travel woven through the middle, a technician who does whatever the building needs when he opens the panel, and a timesheet written from memory on Friday. Every one of those habits produces a record that cannot be certified. The wage rates are the part people worry about, and the wage rates are printed on a document anyone can read. The timekeeping is the part that produces back-wage findings.

What certified payroll requires as a submission, and what the sworn statement on it means, is a separate subject. See related: Certified Payroll and What It Actually Requires of You.

The three axes an hour has to carry

Project. Which covered contract the hour was worked on. Hours worked in your shop, at your yard, or on an unrelated private job are not hours on the covered contract, and mixing them into the project's hours is as wrong as leaving covered hours out.

Classification. Which trade classification on the applicable wage determination the work falls under. This is not your internal job title. The determination publishes a fixed list of classifications with a base rate and a fringe rate for each, and your people have to be mapped onto that list. A technician who does two kinds of work in a day has two classifications in that day.

Day. Certified payroll is reported by day, not by week, so a weekly total cannot be decomposed into one after the fact. This is the axis shops lose first, because a weekly total is what their payroll system was built to want.

The wage determination is two numbers, not one

Each classification carries a base hourly rate and an hourly fringe rate, and both are obligations. You may discharge the fringe obligation by paying it as cash on top of the base, by making bona fide benefit contributions on the worker's behalf, or by any combination that adds up.

The credit is computed by annualizing. A benefit you pay for on a monthly or annual basis converts to an hourly credit by dividing the contribution across all hours the employee works in the period, not only the hours on covered projects. This is the most commonly botched calculation in the subject and it always errs the same direction. Take a technician who works 1,900 hours in a year, of which 380 are on covered projects. A shop that divides its annual health contribution by 380 rather than by 1,900 claims exactly five times the hourly credit it is entitled to, and the difference is an underpayment on every covered hour.

Both ends of the fringe question are worth holding. A shop with substantial, properly annualized benefits may find its existing contributions cover most of a determination's fringe and it owes little cash. A shop with thin benefits owes nearly the entire fringe in cash on every covered hour, which is a real increase in cash payroll on that project even though the base rate might be close to what it already pays.

Overtime is computed differently than you expect

On covered contracts above the statutory dollar threshold, the Contract Work Hours and Safety Standards Act at 40 U.S.C. chapter 37 requires time and a half for hours worked over 40 in a workweek; below that threshold the contract carries no such clause and the FLSA governs instead. Check which clauses your contract actually incorporates rather than assuming. The overtime premium is generally computed on the basic hourly rate rather than on base plus fringe, so the fringe obligation itself is not multiplied by the overtime factor.

Separately, and this is the one that surprises shops, an employee who works at two or more different rates in the same workweek has an FLSA regular rate that is the weighted average of those rates for that week, and the overtime premium is computed on that weighted average rather than on whichever rate he happened to be working when hour 41 occurred. An alternative method exists under the FLSA regulations where the employee agrees to it in advance, so confirm which one your payroll actually applies rather than assuming.

Travel, shop time and the hours that are not on the site

Travel from a required reporting place, such as your shop, to the worksite, and travel between worksites during the workday, are hours worked under 29 CFR 785.38. That settles whether you pay for them. It does not settle which project's determination rate they carry, and the answer depends on whether the travel occurs at the site of work for the covered contract. Ask the contracting agency, in writing, before the project starts.

Until you have that answer, record travel as its own line with its endpoints. A line you have recorded can be reclassified later. A half hour absorbed into "Site B, 3.75 hours" cannot be recovered without reconstructing a day from memory, which is exactly the reconstruction that produces findings.

Rounding is permitted. Under 29 CFR 785.48(b), rounding to the nearest quarter hour is acceptable where it averages out over time and does not consistently work in the employer's favor. A shop that rounds arrivals forward and departures back has a systematic practice, not a rounding practice, and it is visible in a data set as soon as anyone looks.

Apprentices only count as apprentices under two conditions

On federally funded and federally assisted construction, a worker may be paid at an apprentice rate, which the determination expresses as a percentage of the journeyworker rate rising through the program's terms, only where the worker is individually registered in a program registered with the U.S. Department of Labor's Office of Apprenticeship or with a recognized State Apprenticeship Agency, and only within the ratio of apprentices to journeyworkers the registered program allows on the site. This is 29 CFR 5.5(a)(4). Under a state prevailing wage act the recognition rule and the ratio come from that state's statute instead, and they are not always the same.

Both conditions bite. A helper who is not registered is owed the full rate for the classification of the work he performs, whatever you call him internally. And a registered apprentice working outside the permitted ratio on the site is owed the journeyworker rate for the hours in excess of the ratio, which means a second helper sent to fill in on a busy day converts himself into a journeyworker for payroll purposes.

The artifact: one technician's Tuesday, re-cut

Here is a day this shop would normally record as "9.25 hours, two jobs." Both sites are covered public projects under separate contracts.

Two things inside that day do not show on this cut. First, the pump seal was replaced after the section was isolated, drained and allowed to cool below scald temperature, because a hot water circuit still at pressure and temperature will flash at the joint the moment the seal is broken. Second, 0.75 of the 3.75 hours at Site A was spent pulling and re-landing conductors at the pump starter, and that segment was performed with the circuit isolated, locked out, and proved dead using the live-dead-live sequence before any conductor was touched, per 29 CFR 1910.333(b)(2) in general industry, or 29 CFR 1926.417 where the same electrical work falls under construction rules as it does on a covered renovation contract, with the proving sequence at NFPA 70E-2021, 120.5. That second detail is not incidental to the payroll question. It is a different classification, and the reason the technician can prove it was 0.75 hours is that he wrote down when he isolated the circuit and when he re-energized it.

Re-cut for a covered project, the same day becomes:

• Site A, pipefitter classification: 3.00 hours
• Site A, electrician classification: 0.75 hours
• Site B, pipefitter classification: 3.25 hours
• Travel, shop to Site A: 0.50 hours, hours worked, attribution to be confirmed with the agency
• Travel, Site A to Site B: 0.50 hours, hours worked, attribution to be confirmed
• Travel, Site B to shop: 0.50 hours, hours worked, not at a site of work
• Shop time: 0.75 hours, hours worked, no determination rate

Seven lines where the shop's habit produced two, and the totals still reconcile to 9.25.

What the missing 0.75 hours would have cost. Suppose the electrician classification's base on this determination sits about 18 percent above the pipefitter classification's. Where records do not segregate time between classifications, the enforcement position is that all hours worked that day are owed at the higher classification. So the unsegregated version of this day owes 3.75 hours at the electrician rate instead of 3.00 pipefitter hours plus 0.75 electrician hours. The extra is 3.00 hours at the 18 percent differential, which is 0.54 of a pipefitter-hour in additional wages for that one day, or about 14 percent more on Site A's labor for the day. That is 0.54 hours multiplied by every technician and every day the shop failed to segregate, and it surfaces as a back-wage computation months later, with the project's remaining payments potentially withheld while it is resolved.

Why the direction runs that way. The rule is not a penalty invented to punish sloppiness. It exists because with no contemporaneous record there is no evidence the lower-rate hours were lower-rate hours, and the worker gets the benefit of that gap. The corollary is the useful one: the record does not have to be elaborate, it has to be contemporaneous. A time stamp when the classification changes is enough.

The failure mode. A shop that reconstructs the week on Friday will reliably produce site hours that total correctly and will reliably lose the 0.75 hour segment, because nobody remembers a 45 minute detour into another trade four days later. The tell is a certified payroll where every technician's hours divide evenly across sites in round numbers and no day ever carries two classifications. Real days are not that clean, and a reviewer who has read a hundred of these knows it.

How to verify you got this right

Take one covered week, already submitted, and test whether the underlying record can answer four questions for any single hour in it: which contract, which classification, which calendar day, and what was paid as base versus fringe. If any hour cannot answer all four, the record is a summary rather than a payroll record.

Then check the retention. Under 29 CFR 5.5(a)(3), payroll and basic records for covered work are preserved for three years after all the work on the contract is completed, and that clock starts at project completion, not at the pay date.

References

• 29 CFR 5.5, contract provisions for federally funded and assisted construction, including classification and payroll record requirements at (a)(1) and (a)(3) and apprentice provisions at (a)(4)
• 29 CFR 785.38 (travel that is all in the day's work) and 29 CFR 785.48(b) (rounding practices)
• Contract Work Hours and Safety Standards Act, 40 U.S.C. chapter 37, overtime on covered contracts
• 29 CFR 1910.333(b)(2) and NFPA 70E-2021, 120.5, for the electrical isolation and verification referenced in the worked day
• See related: Certified Payroll and What It Actually Requires of You, How to Decide Whether to Take Prevailing Wage Work