Glossary
Public procurement glossary
Public procurement runs on a vocabulary that looks like ordinary business English but is not. A bid that is responsive is not a bid that got a response. A responsible bidder is not a bidder who behaved well. Retainage is not a retainer. These words are terms of art, most of them defined in statute or in a purchasing manual, and the definitions decide who gets paid.
The stakes are unusually concrete. In commercial sales, misreading a term costs you a negotiation. In public bidding, misreading a term costs you the award. A missing addendum acknowledgment, an unsigned bid bond or an unacknowledged mandatory site visit gets a bid rejected before anyone reads your price. Agencies are not being difficult when they do this. They are following procurement codes that give them very little discretion once a bid is materially nonconforming, because the alternative is a protest from the bidder who did follow the rules.
This glossary covers the forty terms that matter most in state, county, city, school district and special district buying, what the industry calls SLED. Nearly every procurement glossary online is written for federal contracting, and federal rules are the exception, not the norm, for most of the money. Where state and local practice diverges from the Federal Acquisition Regulation, each entry says so.
On this page
The short version
- Procurement terms are legal definitions, not jargon: 'responsive' and 'responsible' have specific statutory meanings and they are not interchangeable.
- Most public buying in the United States is state and local, and it does not follow the FAR. Each state has its own procurement code, and cities and districts often have their own on top of it.
- Federal rules still reach state and local work through grant money: 2 CFR Part 200 and the Davis-Bacon Related Acts attach federal strings to locally run procurements.
- The GAO does not hear protests of state or local awards. Your remedy is the agency's own protest process, then state court.
- Terms that sound procedural (addendum, bid opening, notice of intent to award) are usually the ones that start a clock or void a bid.
Why public procurement has its own language
Government buying is designed to be reviewable. Every step has to be defensible to an auditor, a losing bidder and eventually a judge, which is why so much of the process is defined by rule rather than by judgment. The vocabulary is the residue of that: each term exists because someone once litigated the difference.
Three forces shaped it:
- Competition mandates. Procurement codes require open competition and treat any narrowing of the field as suspect. 2 CFR 200.319 lists unreasonable qualification requirements, excessive bonding and brand-name-only specifications as competition-restricting practices. Terms like sole source and emergency procurement exist to name the narrow exits from that mandate.
- Public money and public risk. Because agencies cannot place a mechanic's lien on a public school, Congress and the states built a parallel system of surety bonds. That is where bid bonds, performance bonds and payment bonds come from.
- Transparency law. Open meetings and public records statutes mean your proposal, your pricing and the evaluators' scoresheets are usually disclosable documents.
Procurement vehicles and methods
How the agency buys determines how you should respond. Read the differences between an RFP, an RFQ and an IFB alongside these.
- Invitation for Bid (IFB): sealed bidding, award to the low responsive and responsible bidder
- Request for Proposals (RFP): scored on published criteria, not price alone
- Request for Quotes (RFQ): informal solicitation under a small-purchase threshold
- Invitation to Negotiate (ITN): the negotiated method used heavily in Florida
- IDIQ: indefinite delivery, indefinite quantity master contracts
- Sole source and emergency procurement: the two legitimate ways to skip competition
- Piggybacking and cooperative purchasing: buying off someone else's competed contract
- State term contract: the statewide master agreement
- Job order contracting (JOC): unit-price construction on call
- Qualifications-based selection (QBS): how design services must be bought
Rules and compliance
This group decides whether your bid is eligible to be evaluated at all. If you read only one entry in this glossary, read responsiveness versus responsibility. It is the distinction that throws out more bids than any other.
- Responsiveness vs. responsibility
- Prevailing wage and Davis-Bacon
- Buy American and Build America, Buy America
- Addendum, and why unacknowledged ones are fatal
- Bid protest
- Debarment
- Conflict of interest
- Public records request and sunshine law
Money and risk
These terms set the cash you have to put up, the cash the agency holds back and what happens when the schedule slips. They are the difference between a profitable contract and a funded one.
- Bid bond, performance bond, payment bond
- Retainage
- Liquidated damages
- Change order
- Not-to-exceed (NTE)
- Unit price contract
Before you commit to a pursuit, it is worth pricing the effort itself. See what it actually costs to bid.
Process mechanics
The calendar of a solicitation, and the events that move it. Most of these are dates on a schedule; two of them start clocks you cannot extend.
- Solicitation number
- Pre-bid meeting
- Bid opening
- Evaluation criteria
- Best and final offer (BAFO)
- Notice of intent to award
- Incumbent
The end of one cycle is the start of the next: a good debrief is the cheapest market research in this business.
Identity and certification
Registration numbers and preference programs. The federal identifiers travel with you into state and local work whenever federal grant dollars are involved.
- Unique Entity ID (UEI)
- CAGE code
- Set-aside, and the state and local equivalents, which usually work as goals rather than restricted competitions
Six pairs of terms that get confused
Most costly misreadings are not of a single word but of a pair that sound related and are not. These are the ones that recur.
| Pair | The distinction that matters |
|---|---|
| Responsive / responsible | Your bid document versus your company. The first is judged at opening and rarely curable; the second is judged up to award and usually curable. |
| Sole source / single source | Only one vendor can perform, versus the buyer preferring one that could be competed. Only the first is a lawful exception to competition. |
| Set-aside / participation goal | Restricted competition versus open competition with a subcontracting target. State and local programs are usually the second. |
| Bid bond / performance bond | A guarantee you will sign if you win, versus a guarantee the work will be finished. Different amounts, different moments. |
| Retainage / liquidated damages | Your money held back pending completion, versus the owner's money assessed for lateness. Retainage is returned; LDs are not. |
| Not-to-exceed / fixed price | A ceiling on payment for actual work, versus a set amount paid regardless of cost. Efficiency pays under the second, not the first. |
Read both entries in any pair before you rely on either. Each links to the other.
How to use this glossary
These entries define terms. They deliberately stop short of telling you how to run a pursuit, because that is a different job. Start with how to respond to an RFP, then build a compliance matrix before you write a word of narrative.
Two habits will save you more than any definition. First, read the solicitation's own definitions section: an agency's purchasing manual can define a common term more narrowly than the state code does, and the solicitation controls. Second, when a term appears in a mandatory or shall sentence, treat it as a requirement to be tracked, not language to be skimmed.
One more habit is worth naming, because it separates firms that win public work from firms that merely bid it: keep a file on each buyer. Solicitation numbers, addenda, bid tabulations, evaluation scoresheets, contract terms and expiration dates are almost all public in state and local procurement, and almost nobody collects them. Over a year, that file tells you which agencies buy your category, how many bidders each solicitation attracts, what the winning spread looks like, and when the next re-compete lands. It is the closest thing to an unfair advantage that the rules permit.
Common questions
Are these terms the same in every state?
No. Most states modeled their procurement codes on the American Bar Association's Model Procurement Code for State and Local Governments, so the core concepts travel, but thresholds, protest deadlines and even method names differ. Florida's ITN has no equivalent in many states.
Do federal procurement rules apply to city and county contracts?
Not directly. The Federal Acquisition Regulation governs federal agency buying. Federal rules reach local procurements through grant conditions instead, chiefly 2 CFR Part 200 and the Davis-Bacon Related Acts.
Where do I find the definitions that actually govern my bid?
In three places, in order of authority: the state procurement code, the buying agency's own purchasing ordinance or manual, and the solicitation's definitions section. When they conflict, the solicitation usually controls for that procurement.
What is the single most misunderstood term here?
Responsiveness versus responsibility. Responsiveness is judged from the four corners of your bid at the moment of opening and generally cannot be cured. Responsibility is about your capability and can be established after opening.