Solicitation Addenda: What Bidders Must Do
An addendum or amendment becomes part of the solicitation. It may answer questions, replace documents, change quantities or requirements, revise the opening date, or alter the forms bidders must submit.
What an addendum can change
- Scope, drawings, specifications, or quantities
- Submission date, time, place, or method
- Pre-bid meeting or site-visit information
- Wage determination or contract clauses
- Bid forms, alternates, and pricing schedules
- Answers to bidder questions
Use a controlled process
- Maintain an addendum log by number and date
- Download from the official source
- Identify every replaced page or document
- Distribute changes to estimators, subcontractors, and suppliers
- Reconcile pricing and schedule impacts
- Acknowledge each amendment exactly as instructed
Meeting statements are not automatically changes
Federal sealed-bidding rules state that information needed for bids must be furnished through an amendment even when discussed at a pre-bid conference. State and local procedures vary, but contractors should seek written official clarification rather than rely on an oral statement.
Deadline changes
Never infer that questions, portal trouble, weather, or an anticipated amendment extend the deadline. Only the issuing agency can revise it through the applicable official process.
Final addenda check
- Check the source shortly before submission
- Record date and time of the check
- Confirm all amendments are included in the compliance matrix
- Verify acknowledgments appear in the required place
- Retain the final package and submission confirmation
Official sources and further reading
- FAR 14.208: amendment of invitation for bids ↗
- FAR 15.206: amending the solicitation ↗
- FAR 52.214-3: acknowledging amendments ↗
This overview is educational and is not legal advice; it cannot determine whether a law, certification, wage rule, or solicitation requirement applies to your business. Rules differ across federal, state, and local procurement and can change. Verify the current official solicitation and consult the issuing agency or a qualified adviser when needed.
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