Glossary
Piggybacking
Piggybacking is the practice of a public agency purchasing under a contract that a different public agency competed and awarded. The buying agency does not run its own solicitation; it adopts the other jurisdiction's contract, usually at the same pricing and terms, on the theory that competition already occurred.
It depends entirely on the original contract containing language permitting other public entities to use it, often called a cooperative clause, extension clause or piggyback clause. Without that clause in the original solicitation, there is nothing to piggyback on.
The short version
- Piggybacking works only if the original solicitation advertised that other agencies could use the resulting contract. That clause has to be in the bid documents, not added later.
- It is the fastest legitimate path from zero to a signed public contract, because there is no new competition to win.
- The clause is a marketing asset. If you hold a contract with one, you can sell it to every eligible agency in the region.
- Federal grant funds add scrutiny: the original procurement must itself have satisfied the Uniform Guidance competition rules.
Why it matters to a bidder
When you win a public contract, check whether it carries a cooperative clause. If it does, your one win is a sales license across an entire state or region, and the follow-on sales cost you nothing in proposal effort. If it does not, ask the buyer during the question period whether one can be added to the solicitation. Agencies frequently agree, because it costs them nothing and may earn goodwill from neighboring jurisdictions.
- Keep a one-page summary of each cooperative contract you hold: contract number, awarding agency, term, eligible users, pricing sheet.
- Confirm whether the piggybacking agency needs its own governing-board approval. Most do.
- Expect a participating addendum or rider agreement rather than a fresh contract.
A real example
A mid-size city competes and awards a three-year contract for playground equipment with a clause permitting any other public agency in the state to purchase under the same terms. Over the term, eleven school districts and two park districts buy from the vendor without issuing a single solicitation. Total piggyback volume exceeds the original city's own spend by a factor of four.
How state and local differs from federal
Piggybacking is an almost purely state and local phenomenon. The federal government solves the same problem with government-wide acquisition contracts and GSA Schedules, which are designed from the outset for multi-agency use rather than adopted after the fact.
State authority varies widely. Some states expressly authorize piggybacking by statute; others permit it only through a formal cooperative purchasing agreement or joint powers authority; a few restrict it to contracts competed within the same state. Home-rule cities and independent school districts often have their own rules on top. Before you promise an agency it can piggyback, confirm that its own code allows it. The vendor is usually the one who gets asked.
When federal grant dollars pay the bill, 2 CFR 200.319 and 200.320 still apply, and the recipient must be able to show the underlying contract was competed accordingly.
Common questions
Is piggybacking legal everywhere?
No. Authority depends on state statute and local ordinance. Some states require a formal interlocal or cooperative agreement first.
What is the difference between piggybacking and a cooperative contract?
A cooperative contract is competed from the start on behalf of many members. Piggybacking adopts a contract that was competed for one agency and happens to allow others.
Can pricing change when another agency piggybacks?
Usually it must match the original, though many clauses allow adjustment for freight, volume or geography. Get it in writing in the rider.
How do I find piggyback opportunities?
Look at the eligible-user lists on contracts you already hold, and at neighboring agencies that buy the same category but have not solicited recently.