California prevailing wage law requires every worker on a public works contract over $1,000 to be paid a locally set rate, usually well above the state minimum, as published by the Department of Industrial Relations (DIR) for each county and craft. The rate covers a base hourly wage plus employer-paid fringe benefits. Getting it wrong exposes a contractor to penalties up to $200 per worker per day, back wages with 10 percent annual interest, and debarment from future public work.
When the Law Applies
Labor Code Section 1720 defines a public work broadly. It covers construction, demolition, installation, repair, and maintenance performed under contract and paid for in whole or in part with public funds. The definition reaches preconstruction work like land surveying and soil testing, postconstruction cleanup, and even the assembly of modular office systems.
Projects that look private can still qualify. When a government agency transfers an asset below fair market value, waives fees, or enters a lease-back with a private developer, the resulting project can be treated as a public work. The test is whether public money or public benefit subsidizes the contract, not whether the owner is a government agency.
The $1,000 threshold applies statewide. An awarding body that operates a DIR-approved labor compliance program can raise that floor to $25,000 for new construction or $15,000 for repair, maintenance, alteration, or demolition. Outside those narrow cases, assume $1,000.
Register With DIR Before You Bid
Under Labor Code Section 1725.5, a contractor or subcontractor must be registered with DIR before bidding on, being listed in a bid proposal for, or performing any work on a public works project. There is no grace period. A bid from an unregistered contractor is grounds for disqualification.
Registration runs on a July 1 to June 30 fiscal year. The fee is $400 annually, $800 for two years, or $1,200 for three. A contractor that bids on or performs public works without current registration faces a $2,000 penalty. A late renewal can trigger a $400 penalty if the lapse was accidental, or $2,000 if DIR concludes it was not. Two registration violations within 12 months can bar a contractor from public works for up to a year.
Finding the Correct Rate
The DIR Director publishes General Prevailing Wage Determinations twice a year, on February 22 and August 22, each taking effect ten days later. Rates are organized by county and craft and reflect wages negotiated in local collective bargaining agreements. If a trade or specialty is not covered by a general determination, a contractor or awarding body can request a Special Determination for the project.
Look up the project county in DIR’s prevailing wage database, then identify each worker’s craft and classification. A journeyman electrician and an apprentice electrician on the same jobsite carry different required rates. Determination sheets list effective dates and any scheduled increases that may hit during a long-term project, so pull them early in the bidding process to avoid cost surprises.
Base Wage Plus Fringes
The prevailing wage is not just a base hourly rate. The total obligation is the base wage plus employer-paid fringe benefits: health and welfare contributions, pension fund payments, vacation pay, and training fund contributions. All components appear on the determination sheet, and all must be paid.
When a contractor provides fringe benefits directly instead of making fund contributions, the hourly credit equals the total annual cost of the benefit divided by total annual hours worked. If that credit falls short of the fringe rate on the determination sheet, the contractor must pay the difference in cash to the worker. Legally mandated employer costs such as Social Security, unemployment insurance, and workers’ compensation premiums do not count toward the fringe credit.
Overtime
California overtime rules apply on top of prevailing wage rates. Hours beyond eight in a day or 40 in a week must be paid at one-and-a-half times the base rate. Determination sheets list holiday schedules for each trade and may require double-time for recognized holidays. Journeyman overtime hours are excluded from the apprenticeship ratio calculation, which catches some contractors off guard.
Travel and Subsistence
Many trade determinations require additional pay when workers travel beyond a set radius. A laborer determination, for example, may require transportation reimbursement or employer-provided transport for jobsites 60 or more miles from the employer’s established office, along with half the straight-time rate as travel-time pay. Workers who must stay overnight near a remote jobsite are typically entitled to a daily subsistence payment covering lodging and meals. Triggers and dollar amounts vary by trade and region, so the specific determination sheet governs.
Apprenticeship Requirements
Labor Code Section 1777.5 requires contractors on public works to employ apprentices in every apprenticeable craft at a minimum ratio of one apprentice hour for every five journeyman hours. Some trades set a higher ratio through their apprenticeship standards, and a contractor bound by those standards must follow the higher number. When an hourly ratio is impractical, the Administrator of Apprenticeship may instead require a headcount ratio of at least one apprentice for every five journeymen.
Before starting work, each contractor must send contract award information to the applicable apprenticeship program, including estimated journeyman hours, the number of apprentices to be employed, and approximate employment dates. On projects of $30,000 or more, the DAS 140 notification must be submitted within 10 days of contract award or before workers begin on site, whichever comes first. Within 60 days after the contract ends, the contractor submits a verified statement of actual journeyman and apprentice hours to the apprenticeship program and, if requested, to the awarding body.
Knowingly violating the apprenticeship rules can result in debarment of up to one year for a first offense and up to three years for subsequent offenses.
Certified Payroll Records
Every contractor and subcontractor must keep payroll records showing each worker’s name, address, Social Security number, classification, daily and weekly hours, and actual wages paid. Records must carry a declaration signed under penalty of perjury confirming the information is accurate and that the employer has complied with prevailing wage and overtime requirements.
Submit certified payrolls electronically through DIR’s eCPR system. When an awarding body, the Division of Labor Standards Enforcement, or the Division of Apprenticeship Standards requests payroll records in writing, the contractor has 10 days to produce them. Missing that deadline triggers a $100-per-worker, per-calendar-day penalty until the records are provided. A prime contractor is not penalized for a subcontractor’s failure to produce records, but the subcontractor faces its own exposure, including potential debarment if it ignores a follow-up 30-day cure notice from the Labor Commissioner.
What Noncompliance Costs
The Division of Labor Standards Enforcement investigates complaints, audits payroll, and conducts jobsite interviews. When a violation is confirmed, the Labor Commissioner issues a Civil Wage and Penalty Assessment covering unpaid wages, penalties, and interest.
The underpayment penalty ranges from $40 to $200 per worker for each calendar day of underpayment. Within that range, the Labor Commissioner weighs whether the violation was a good-faith mistake promptly corrected and whether the contractor has prior violations. The minimum escalates with history:
- First violation, no bad faith: the penalty can drop below $40 if the error was a good-faith mistake quickly corrected after discovery.
- Prior penalties within three years: minimum rises to $80 per worker per day.
- Willful violation: minimum jumps to $120 per worker per day.
Interest accrues on unpaid wages at 10 percent per year from the date they were originally due. On a multi-month job with dozens of underpaid workers, interest alone becomes significant.
Debarment
Debarment bars a contractor from bidding on, being awarded, or performing any public works project for a set period:
- Fraud: one to three years.
- Two or more willful violations within three years: up to three years.
- Failure to produce payroll records after a 30-day cure notice: one to three years.
- Knowing and serious apprenticeship violations: up to one year for a first offense, up to three years for repeat offenses.
Debarment reaches not only the contractor entity but any firm, partnership, or corporation in which the debarred contractor holds an interest. The Labor Commissioner maintains a public list of contractors found to have committed willful violations; names stay listed for at least three years or until the full assessment is paid, whichever is longer.
Skilled and Trained Workforce: A Separate Layer
Some public works projects carry a requirement on top of prevailing wage: a set percentage of journeypersons on the job must be graduates of a registered apprenticeship program in their trade. For most apprenticeable crafts the minimum is 60 percent. A group of trades, including carpenters, cement masons, operating engineers, roofers, and plasterers, operates under a fixed 30 percent threshold. The requirement applies to every contractor and subcontractor at every tier, though teamsters are excluded.
These rules usually appear in the project specifications or enabling statute, not in the prevailing wage determination. If a project carries skilled-and-trained-workforce language, verify your crew composition before mobilizing. Falling short on graduation percentages after work begins creates a compliance problem with no easy fix.