Payment & collections
Public work runs on a different set of rules than private work, and the difference is not only procedural. Prevailing wage obligations, registration requirements, and certified payroll duties all carry consequences that reach a contractor’s money — through penalties assessed per worker per day, through withheld payments, and through eligibility to hold the contract at all. Meanwhile the collection remedies change shape, because a mechanics lien generally does not attach to public property. This guide, reviewed by Jayson R. Elliott, covers both halves.
Labor Code section 1720 defines public works for prevailing wage purposes, and the definition turns substantially on public funding rather than on who owns the property. That is the first place contractors are surprised: a privately owned project can fall within the definition if it is paid for in whole or in part out of public funds.
Labor Code section 1771 states the core obligation and its threshold. Except for public works projects of one thousand dollars or less, not less than the general prevailing rate of per diem wages for work of a similar character in the locality where the work is performed must be paid to all workers employed on public works. Section 1771 applies to work performed under contract and does not apply to work a public agency carries out with its own forces, and it does apply to contracts let for maintenance work.
The threshold is low enough that most public work of any size is covered. Whether a specific project qualifies is a threshold question worth resolving before bidding, not after.
Labor Code section 1725.5 requires contractors and subcontractors performing public work to be registered with the Department of Industrial Relations, and section 1771.1 ties that registration to eligibility — registration is a prerequisite to bidding on, being listed in a bid for, or being awarded a public works contract.
The practical consequence runs down the tiers. A general contractor who lists an unregistered subcontractor has a problem in the bid, not merely in performance. Verifying registration for every subcontractor before contract execution, and confirming it stays current for the duration, is standard practice on public work for a reason.
Prevailing wage rates are set by determination and are specific to the locality and to the craft. The classification question is where most exposure originates: a worker must be classified by the work actually performed, not by job title or by what the employer prefers to call the position. Misclassification produces underpayment even where the contractor believed it was paying a proper rate.
Labor Code section 1774 obligates the contractor and subcontractors to pay not less than the specified rates. The obligation is not delegable in the sense that matters here — as section 1775 makes explicit, a general contractor carries duties with respect to its subcontractors’ compliance.
Labor Code section 1776 requires each contractor and subcontractor to keep accurate payroll records showing, for each worker on the public work, the name, address, social security number, work classification, straight time and overtime hours worked each day and each week, and the actual per diem wages paid. Each payroll record must contain or be verified by a written declaration, made under penalty of perjury, that the information is true and correct and that the employer has complied with specified wage and hours requirements.
Section 1771.4 requires certified payroll records to be furnished to the Labor Commissioner, generally through the Department’s electronic system, subject to a small project exemption. The penalty-of-perjury declaration is the detail to sit with: certified payroll is a sworn statement, and errors in it are not merely administrative.
Labor Code section 1775 sets penalties for paying less than the prevailing rate, and the structure is per worker, per calendar day. Two escalation floors appear in the statute. The penalty may not be less than eighty dollars for each calendar day, or portion of a day, for each worker paid less than the prevailing rate, where the contractor or subcontractor has been assessed penalties within the previous three years for failing to meet prevailing wage obligations on a separate contract — unless those penalties were later withdrawn or overturned. And the penalty may not be less than one hundred twenty dollars per day per worker where the Labor Commissioner determines the violation was willful, as willfulness is defined in Labor Code section 1777.1.
Section 1775 also provides that where amounts are collected, an outstanding wage claim against the contractor or subcontractor is satisfied before the collected amount is applied to the penalty. Workers are paid first.
Arithmetic matters here. A modest misclassification affecting a handful of workers across several months is not a modest number once it is multiplied by workers and by calendar days.
Section 1775 provides that the contractor shall monitor the payment of the prevailing rate by the subcontractor to its employees, by periodic review of the subcontractor’s certified payroll records. This is an affirmative duty, not a passive one, and it is the provision that makes a general contractor’s exposure for a subcontractor’s underpayment a live question rather than an academic one. Periodic review means a documented practice.
Two further compliance areas sit alongside wages and are commonly addressed together in public works contracts: apprenticeship obligations under Labor Code section 1777.5, and hours-of-labor requirements under sections 1813 and 1815. Debarment for certain violations is addressed at section 1777.1. This page does not develop those provisions; a contractor bidding public work should have them reviewed as part of the same compliance setup rather than separately.
Retention on public work is governed by the Public Contract Code, and the framework is generally described as requiring a public entity to release retention to the direct contractor within sixty days after completion of the improvement, with a mechanism permitting the entity to withhold an amount tied to a percentage of a disputed sum where there is a genuine dispute over retention otherwise due.
That framing is stated generally here on purpose. The specific Public Contract Code provisions governing retention, prompt payment, and the State Contract Act were not read directly in preparing this page, and the timelines and withholding percentages should be confirmed against the code before a contractor relies on a number.
This is where public work diverges most sharply from private work. A mechanics lien generally does not attach to public property, so the lien remedy that anchors private collection is unavailable. Two remedies take its place.
The payment bond is usually the primary route. Civil Code section 9550 requires a direct contractor awarded a public works contract involving an expenditure in excess of twenty-five thousand dollars to give a payment bond before commencement of work, and section 9554 requires that bond to be in an amount not less than one hundred percent of the total amount payable under the contract, executed by an admitted surety insurer. Section 9558 sets the deadline to sue on it: any time after the claimant ceases to provide work, but not later than six months after the period in which a stop payment notice may be given under section 9356.
The stop payment notice is the second route, reaching undisbursed public funds rather than property. And where a required payment bond was never given and approved, Civil Code section 9552 provides that the public entity may not audit, allow, or pay the direct contractor’s claim, and directs claimants to the stop payment notice procedure — so the absence of a bond redirects the remedy rather than removing it.
Both routes have preliminary notice as a prerequisite, with the payment bond carrying the saving mechanism covered on the bond guide. On public work, preliminary notice goes to the public entity and to the direct contractor.
Before you ask
Labor Code section 1771 requires payment of not less than the general prevailing rate of per diem wages to all workers on public works, except for public works projects of one thousand dollars or less. Labor Code section 1720 defines public works largely by reference to public funding, so a privately owned project can fall within the definition if it is paid for in whole or in part out of public funds.
Yes. Labor Code section 1725.5 requires contractors and subcontractors performing public work to be registered with the Department of Industrial Relations, and section 1771.1 makes registration a prerequisite to bidding on, being listed in a bid for, or being awarded a public works contract. A general contractor listing an unregistered subcontractor has a problem at the bid stage.
Labor Code section 1775 sets penalties per worker, per calendar day. The penalty may not be less than eighty dollars per day per underpaid worker where the contractor was assessed penalties within the previous three years on a separate contract, and not less than one hundred twenty dollars per day per worker where the Labor Commissioner determines the violation was willful as defined in section 1777.1.
Labor Code section 1775 imposes an affirmative monitoring duty: the contractor shall monitor payment of the prevailing rate by the subcontractor to its employees through periodic review of the subcontractor’s certified payroll records. That makes a general contractor’s exposure for a subcontractor’s underpayment a real question, and periodic review means a documented practice.
Labor Code section 1776 requires accurate payroll records showing each worker’s name, address, social security number, work classification, straight time and overtime hours worked each day and week, and the actual per diem wages paid. Each record must contain or be verified by a written declaration made under penalty of perjury — certified payroll is a sworn statement, not an administrative form.
Generally no, because a mechanics lien does not attach to public property. The substitutes are the payment bond — required by Civil Code section 9550 on contracts in excess of twenty-five thousand dollars and sized at not less than one hundred percent of the contract under section 9554 — and the stop payment notice against undisbursed public funds.
Keep reading
Breadcrumb + pillar parent
“the saving mechanism covered on the bond guide”
Second remedy on public work
Preliminary notice prerequisite
Why the lien is unavailable here
Lower-tier remedies
Licensure precondition
Inline first mention: public works, prevailing wage, wage determination, certified payroll, DIR registration, awarding body, retention
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