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MMBONDING
Public Works

California Public Works Bonds by Obligee: Caltrans, DGS & LA

Major California public owners run their bonding the same way. Here is the standard bid, performance, and payment bond program, who sets the amounts, and why DIR registration comes first.

Illustration for the guide: California Public Works Bonds by Obligee: Caltrans, DGS & LA

Public works means bonded work

When a California public agency builds something, it protects public money by requiring surety bonds. Bid a public job and you will be asked to furnish the standard contract bond program. The details sit in the solicitation, but the shape is the same across nearly every public owner in the state.

The standard program

Almost every California public works solicitation asks for the same three contract bonds, in two stages.

  • A bid bond to bid. It backs your bid and your promise to furnish the final bonds if you win, commonly 5 to 10% of the bid.
  • A performance bond to build. It guarantees you finish the work per the contract, commonly up to 100% of the contract amount.
  • A payment bond to build. It guarantees your subcontractors and suppliers get paid, also commonly up to 100% of the contract.

How the obligee sets it

The obligee is the party the bond protects, and on public works that is the agency that owns the project. The obligee sets the requirement: which bonds, at what percentage, on which forms, and by when. Those terms live in the contract and the bid documents, so read them closely and confirm anything unclear with the agency before you rely on it.

Caltrans, DGS, and local agencies

Big or small, California public owners follow this pattern. What changes between them is the fine print, not the framework.

  • Caltrans for state highway and transportation work.
  • The Department of General Services (DGS) for state buildings and many statewide programs.
  • The City and County of Los Angeles and other local agencies for local infrastructure.

Treat agency names as general guidance. Exact amounts, forms, and thresholds vary by agency and by project, so always confirm the specific solicitation rather than assuming it matches the last one.

Do not forget DIR registration

Bonds are not the only gate. To bid or work public works in California you must register with the Department of Industrial Relations, and you register before you bid. It is separate from your bonds and does not replace them. See DIR registration and our guide to how to bid public works in California.

Questions

FAQs

Reviewed by Michael Melshenker, CEO. Updated June 2026.

Which bonds does a California public works job require?
Usually the full contract program. You furnish a bid bond to submit a bid, then performance and payment bonds if you win, commonly up to 100% of the contract. The agency sets the exact requirement in the solicitation.
Who decides the bond amount?
The obligee does, meaning the public agency that owns the project. The amount and the bond forms are written into the contract and the solicitation, so read those documents and confirm with the agency before you bid.
Do Caltrans, DGS, and the City and County of LA all work this way?
Yes, they follow the same bid, performance, and payment bond pattern. The exact amounts, forms, and thresholds vary by agency and by project, so always confirm the specific solicitation rather than assuming it matches the last one.
Do I need DIR registration to bid?
Yes. In California you must register with the Department of Industrial Relations before you bid or work on public works. It is separate from your bonds and does not replace them.