FIDIC Dispute Adjudication Board (DAB/DAAB): How It Works
The Engineer's determination has come back, and the Contractor does not agree with it. Arbitration feels premature and enormously expensive for a single disputed valuation. Somewhere in the contract there is a body called the "DAB" or the "DAAB" that is supposed to sort this out first — but what is it, who sits on it, and does its decision actually settle anything? This guide answers all three.
What the DAB/DAAB Actually Is
The Dispute Adjudication Board — DAB under the FIDIC 1999 Red Book, renamed the Dispute Avoidance/Adjudication Board (DAAB) under the FIDIC 2017 Second Edition — is a panel of one or three independent, contractually appointed people whose job is to decide disputes between the Employer and the Contractor faster and more cheaply than arbitration.
It sits between the Engineer's determination and formal arbitration in the contract's dispute-resolution ladder. The Engineer's determination under Sub-Clause 3.5 (1999) or 3.7 (2017) is made by the person administering the contract day to day. The DAB/DAAB decision comes from an outsider with no stake in the project, appointed specifically because they are independent of both parties.
Members are typically experienced engineers, quantity surveyors, or lawyers with construction-dispute expertise, jointly selected and agreed by the Employer and Contractor at the outset (or nominated by an appointing body such as FIDIC itself if the parties cannot agree). A one-member board is common on smaller contracts; a three-member board — one nominee from each party plus a jointly agreed chair — is typical on larger ones.
Key Takeaway: The DAB/DAAB is an independent one- or three-person panel, agreed by both parties, that sits between the Engineer's determination and arbitration in the FIDIC dispute ladder.
DAB (1999) vs DAAB (2017): What Changed
The name change is more than cosmetic. Under the 1999 Red Book, the board is constituted under Clause 20 and its role is purely adjudicative — it decides disputes once they are formally referred to it. Under the 2017 Second Edition, the same body is constituted under Clause 21 and is given a second, informal function: dispute avoidance.
In practice this means a 2017-edition DAAB can be asked, jointly by both parties and without a formal referral, to help the parties resolve a disagreement before it hardens into a full dispute — for example through an informal discussion or site visit. The 1999 DAB has no equivalent mechanism built into its wording; its involvement only begins once a dispute has been formally referred.
The two editions also differ on how the board is appointed by default. FIDIC 2017 defaults to a standing board across the Red, Yellow, and Silver Books — appointed at or shortly after the contract's commencement and remaining in place for the life of the project. Under the 1999 suite, the Red Book's default wording also points to a full-term board, while some of the other 1999 books default to an ad hoc board, appointed only once a dispute has actually arisen. Always check the Particular Conditions — this is a common amendment point in bespoke FIDIC-based contracts.
Key Takeaway: 2017's DAAB adds an informal dispute-avoidance role the 1999 DAB does not have, and 2017 makes a standing board the default across all three main books. Check the Particular Conditions — appointment timing is a frequent amendment point.
How a Dispute Reaches the Board
A claim does not go straight to the DAB/DAAB. It follows a sequence, and skipping a step can weaken the eventual referral:
- Notice and particulars. The claiming party first gives its Notice of Claim within the contractual deadline and follows up with the fully detailed claim.
- Engineer's determination. The Engineer reviews the claim and issues a determination under Sub-Clause 3.5 (1999) or 3.7 (2017) — an agreement or a decision on entitlement and value.
- Disagreement. If either party disagrees with the determination, that disagreement is what becomes the "dispute" for contractual purposes.
- Referral to the Board. Either party can then refer the dispute to the DAB/DAAB in writing, with copies to the other party and, where relevant, the Engineer.
- The Board's decision. The board considers the referral and issues a reasoned written decision within the period fixed by the contract.
Each of those steps has its own timing rules, so a referral built on a late notice or a skipped determination step invites the same kind of technical objection that a late Notice of Claim invites.
Key Takeaway: A dispute reaches the Board through a set sequence — notice, particulars, Engineer's determination, disagreement, then referral. Each step has its own deadline, and a referral built on a broken chain is an easy target for objection.
Appointment, Fees, and How a Referral Actually Runs
Board members are not appointed by either party alone. The Employer and Contractor jointly select and agree the member (or members, for a three-person board) named in the contract, or shortly after commencement if the names were left open at tender. If the parties cannot agree, the contract points to a nominating body — commonly FIDIC's own President or a body named in the Particular Conditions — to make the appointment instead.
Members are paid a retainer to remain available, plus a daily fee for site visits, reading submissions, and reaching decisions. Both parties usually split these costs equally, regardless of which side eventually wins a given referral — the board's neutrality depends on neither party controlling its pay.
A referral itself is deliberately lighter than arbitration. Each party makes written submissions setting out its case; the board can ask for further information, hold a hearing or site visit, and reach its own conclusions using its own expertise, rather than acting only on what the parties put in front of it. This informality is the point — the process is built to be faster and cheaper than a full arbitral hearing, and to keep the project moving while the parties work out whether they actually want to escalate further.
Key Takeaway: Board members are jointly appointed and paid by both parties, with a nominating body as fallback if they cannot agree. The referral process is deliberately informal and faster than arbitration — that speed is the mechanism's whole purpose.
The Decision: Binding But Not Final — "Pay Now, Argue Later"
This is the feature of the DAB/DAAB system that surprises people most. Once the board issues its decision, both parties must give effect to it immediately — even the party that disagrees with it. This is deliberate: the whole point of the mechanism is to keep cash and time flowing on the project while the underlying disagreement, if it continues, works its way through the slower amicable-settlement and arbitration stages.
A party that disagrees with the decision has 28 days from receiving it to serve a Notice of Dissatisfaction. Miss that window and the decision becomes final and binding — the dispute is over. Serve it in time, and the decision remains binding in the meantime while the parties attempt amicable settlement and, failing that, proceed to arbitration.
If a party simply ignores a binding decision instead of complying, the other party is not required to relitigate the whole dispute from scratch to get relief. This "pay now, argue later" principle was confirmed by the Singapore Court of Appeal in Persero v CRW, which held that a binding but not-yet-final DAB decision can be enforced through arbitration even while the substantive dispute is still being worked through the full process.
Key Takeaway: A DAB/DAAB decision binds both parties immediately, even if disputed. A 28-day Notice of Dissatisfaction keeps the underlying dispute alive without suspending compliance — "pay now, argue later," confirmed in Persero v CRW.
Common Mistakes With the DAB/DAAB Process
- Treating the decision as optional once disputed. Serving a Notice of Dissatisfaction does not excuse non-compliance with the decision in the meantime.
- Referring a dispute before the Engineer's determination stage is complete. Skipping a required step gives the other side a procedural objection unrelated to the merits.
- Missing the 28-day Notice of Dissatisfaction window. The same discipline that applies to the initial Notice of Claim applies here — miss it, and the decision becomes final whether or not it was correct.
- Assuming the board's makeup is fixed by the contract's boilerplate. Board composition, nominating body, and appointment timing are frequently amended in the Particular Conditions — check the actual document, not the FIDIC default.
- Confusing the DAB/DAAB with arbitration. The board's decision is a contractual mechanism for keeping the project moving, not a final legal judgment — arbitration remains the route to a final and binding resolution if the dispute is not settled.
Key Takeaway: Most DAB/DAAB mistakes come from treating it like arbitration — either ignoring a decision because it is disputed, or skipping a procedural step on the way to referral. Follow the sequence and comply with the decision regardless of whether a Notice of Dissatisfaction follows.
Frequently Asked Questions
What is the difference between the DAB and the DAAB?
They are the same idea under two names. The FIDIC 1999 Red Book calls the body the Dispute Adjudication Board (DAB), constituted under Clause 20. The FIDIC 2017 Second Edition renames it the Dispute Avoidance/Adjudication Board (DAAB), constituted under Clause 21, and adds an explicit dispute-avoidance function that lets the parties informally consult the board before a disagreement hardens into a formal dispute. Both versions still adjudicate referred disputes and issue binding decisions.
Is a DAB or DAAB decision final, or can it still go to arbitration?
It is binding but not automatically final. Once the board issues its decision, both parties must give effect to it immediately, even if one of them disagrees. A party that disagrees has 28 days to serve a Notice of Dissatisfaction. If no Notice of Dissatisfaction is served in time, the decision becomes final and binding. If one is served, the decision stays binding while the parties pursue amicable settlement and, if that fails, arbitration.
Do all FIDIC contracts require a standing Dispute Board from the start of the project?
It depends on the edition and the book. The FIDIC 2017 suite defaults to a standing board — appointed at or shortly after commencement and staying in place for the life of the contract — across the Red, Yellow, and Silver Books. Under the 1999 suite, the Red Book's default wording also points to a full-term board, while some of the other 1999 books default to an ad hoc board appointed only once a dispute actually arises, unless the contract is amended. Always check the Particular Conditions, since this is a common amendment point.
What happens if a party ignores a binding DAB or DAAB decision?
The other party can refer the failure to comply straight to arbitration, without having to relitigate the underlying merits of the dispute first. This "pay now, argue later" principle was confirmed by the Singapore Court of Appeal in Persero v CRW, which held that a binding but not-yet-final DAB decision can be enforced through arbitration even while the substantive dispute is still working its way through the full dispute resolution process.
Can the DAB or DAAB help avoid a dispute, or does it only decide ones that already exist?
Under the FIDIC 2017 Second Edition, the renamed DAAB can do both. Its core role is still adjudicating disputes once they are formally referred, but Clause 21 also lets the parties jointly ask a standing DAAB, informally and without a formal referral, to help resolve a disagreement before it becomes a full-blown dispute. The 1999 DAB does not have this informal avoidance function built into its wording in the same way.
Authoritative Sources
This guide reflects the FIDIC Conditions of Contract and established construction-law authority. For the primary materials, see:
- FIDIC Conditions of Contract — the official contract suite published by the International Federation of Consulting Engineers, which sets out the Clause 20 Dispute Adjudication Board (1999) and Clause 21 Dispute Avoidance/Adjudication Board (2017) procedures.
- PT Perusahaan Gas Negara (Persero) TBK v CRW Joint Operation [2015] SGCA 30 — the Singapore Court of Appeal decision confirming that a binding but not-yet-final DAB decision can be enforced through arbitration, the leading authority on the "pay now, argue later" principle.
About the Author
Muhammad M. Jiwani is a Project Director with 15 years' experience on major infrastructure and energy projects administered under FIDIC contracts. He writes from first-hand experience serving notices and managing contractual claims on live projects.