Prepared by the Engineers Joint Contract Documents Committee (EJCDC).

D-430, Proposal Bond, is a legal document used by a surety to guarantee that a Proposer will enter into a construction contract with the Owner if awarded the project. If the Proposer defaults by failing to execute the contract or provide required performance and payment bonds, the penal sum of the bond is forfeited to the Owner as compensation. The document includes detailed guidelines for its use, editing, and legal provisions, and is governed by the 2026 EJCDC® Design-Build Series License Agreement.

EJCDC includes the American Society of Civil Engineers, the American Council of Engineering Companies, the National Society of Professional Engineers, and the participation of more than fifteen other professional engineering design, construction, owner, legal, and risk management organizations.

EJCDC documents are delivered in Microsoft Word format (file extension *.docx) and sometimes Microsoft Excel format (file extension *.xlsx). Microsoft Word and Excel are required if you wish to edit the files.