Reserved matters and veto
Governance choices that often create deadlock.
Tender Practical Guides
Why deadlock clauses need a staged operational solution rather than a single arbitration clause, especially where the employer contract must continue meanwhile.

Deadlock is different from a normal contractual dispute. The members may agree that a variation should be claimed from the employer but disagree on settlement value; they may disagree on a loss-making subcontract, cash call or replacement of the Project Manager. The project still needs decisions every day. Sending every such issue directly to arbitration can be too slow and expensive, while leaving it unresolved can cause employer default. A JV therefore needs an operational deadlock ladder.
A typical ladder can move from Project Manager level to Steering Committee, then to senior executives of the parent companies, followed by mediation or expert determination for defined technical/accounting issues. Only unresolved high-value disputes proceed to arbitration. Time limits matter. A deadlock procedure that allows thirty days at every stage can itself become a project delay mechanism. Emergency operational decisions may need a temporary authority rule while preserving later financial adjustment.
Buy-sell mechanisms can solve structural deadlock but are dangerous in project JVs. Russian roulette, Texas shoot-out or put/call structures assume that a member can legally and commercially acquire the other's interest. Procurement rules, employer consent, qualification requirements, local ownership conditions, financing covenants and guarantee arrangements may make that impossible. An exit clause should therefore never be drafted independently of the employer-facing contract.
The agreement should distinguish deadlock from default. A member that votes against a proposal is not automatically in default. Conversely, a member should not use deadlock protections to avoid a mandatory cash call or contractual obligation already approved under the governance rules. Clear categorisation prevents strategic misuse of the dispute mechanism.
JV and consortium structures are highly project-, jurisdiction- and contract-specific. The bidding document, employer contract, JV/consortium agreement, corporate approvals, competition rules, tax treatment and applicable law govern the live arrangement. This series explains engineering, tender, commercial and governance risks; it is not legal, tax or accounting advice.
Related guidance
Continue with adjacent decisions, controls and evidence requirements that commonly affect the same tender or project workflow.
Governance choices that often create deadlock.
When the problem becomes non-performance rather than disagreement.
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Sources
ICC's current construction JV model and explanation of shared risks, liabilities, rights, benefits and profits.
ICC's construction consortium model, including participation, governance and scope-based internal responsibility.
FIDIC model covering executive authority, default, liability, financial administration, working capital, bonds and steering committee appendices.
World Bank works conditions illustrating joint-and-several liability, leader authority and restrictions on changing composition.