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7 lectura mínimaRevisado el 1 de septiembre de 2026United States, federal and private (AIA) practice

The Claim-Within-a-Claim Trap in US Notice Machinery

Notice-and-time-bar mechanics in US construction turn on structural questions a deadline calendar can't answer: whether a bare time request is itself a Claim, why owner LD assessment skips the Claims machinery entirely, and why a Contracting Officer's grant of extra time never proves the delay was excusable.

Disponible solo en inglésEste artículo aún no se ha traducido. Los plazos, el derecho a reclamar y el procedimiento descritos aquí rozan lo jurídico, y una traducción automática sería un riesgo de credibilidad más que una comodidad: por eso se sirve el original inglés íntegro hasta que exista una traducción revisada.

Where the mechanism, not the deadline, decides the claim
AIA §15.1.3.1 vs §15.1.3.2
Claims arising before or during the one-year correction period get the 21-day bar and IDM referral. Claims first arising after that period get no 21-day contractual limit and no IDM referral: same Article 15, two different regimes, and the split is new in 2017.
Article 8 / Article 15 collision
AIA never resolves whether a §8.3.1 time request is itself a Claim triggering §15.1.3 notice. AGC's advice is to treat every time request as a Claim and serve it that way regardless.
Owner/contractor asymmetry
The owner is not required to file a formal Claim to assess liquidated damages for delay. The contractor's own time claim is barred at 21 days under §15.1.3.1. The notice regime runs one way.
FAR 52.249-10(b)(1) notice
10 days' written notice of the causes of delay to the Contracting Officer, an entitlement step, and one the CO has express power to extend.
FAR 52.242-14 / 52.243-4 20-day rule
A cost cut-off, not an entitlement bar. It caps recovery to costs incurred within 20 days of the notice rather than extinguishing the claim outright.
AIA §1.6.2 certified-mail rule
Claim notice is duly served only by certified or registered mail, or courier with proof of delivery. An email that satisfies every other notice clause in the contract does not serve a Claim, even where the owner had actual knowledge.
Amatea/Grimberg
A CO's grant of a time extension and release of liquidated damages does not establish excusable delay for the contractor's own affirmative claim. CO findings of fact carry no deference once suit is brought.
The deadline calendar is only half the trap. A US delay claim can be timely served and still fail, because the notice went to the wrong machinery, because the owner never had to serve notice at all, or because a Contracting Officer's own grant of extra time turns out to prove nothing in litigation. FAR 52.249-10(b)(1) and AIA A201–2017 §15.1.3 set the clocks. The mechanics below decide whether hitting the clock was ever enough. For the full deadline inventory across AIA, FAR and the Contract Disputes Act, see the companion claim-clocks article. This one goes into the structural questions the calendar can't answer.

The §15.1.3.1/.2 split: new in 2017, and it changes which regime applies

AIA A201–2017 does not have one 21-day rule. It has two, and which one applies depends on timing that has nothing to do with the delay event itself.

§15.1.3.1 governs Claims arising before or during the §12.2.2 one-year correction period: 21 days from occurrence or from when the claimant first recognizes the condition, whichever is later, with notice to the other party and the Initial Decision Maker. Miss it and the Claim is contractually time-barred. §15.1.3.2 governs conditions first arising after the correction period expires: no 21-day contractual limit, no IDM referral, notice to the other party only.

The split is real and it is new to the 2017 edition. It matters because it is not a single deadline with a single failure mode. It is a fork. A party assessing whether a given delay claim is even subject to the 21-day bar first has to work out which side of the correction-period line the claim falls on, and get that threshold question right before the deadline question is even reachable.

The Article 8 / Article 15 collision: is a time request a Claim?

§15.1.1 defines a Claim to expressly include "a change in the Contract Time," which reads as though it settles the question. It does not settle the practical one. §8.3.1 lets the Architect determine whether an unenumerated cause justifies delay, and 2017 removed the requirement that a time extension be effected by Change Order. The extension is now a unilateral Architect determination. That leaves genuine ambiguity about whether a contractor's request for time under §8.3.1 is itself a Claim that must be routed through the §1.6.1/§15.1.3 formal notice machinery, or whether it can proceed as an informal request to the Architect outside Article 15 entirely.

The safe course is to treat every time request as a Claim and serve it accordingly, because if it turns out to have been one, and it wasn't served as one, the request is gone.

The informal route

Treated as an Article 8 request

Sent to the Architect informally, awaiting a §8.3.1 determination. If a reviewer later concludes it needed to be a Claim, the 21-day §15.1.3.1 window may already have closed: the request dies for want of the machinery it never entered.

The safe route

Treated as an Article 15 Claim

Served on the other party and the Initial Decision Maker within 21 days, by the §1.6.2 method. Slower and more formal, but it survives a later finding that it needed to be a Claim all along, and it costs nothing if it turns out not to have needed to be one.

The owner/contractor asymmetry the form doesn't draft out

Article 15's notice machinery does not run in both directions. Under A201–2017 the owner is not required to file a formal Claim to assess liquidated damages for delay. That assessment sits outside §15.1.3 altogether. The contractor's own time claim, by contrast, is barred at 21 days if it isn't initiated and served correctly. The same Article 15 apparatus that can extinguish a contractor's meritorious time claim for a service defect imposes no equivalent procedural discipline on the owner's LD assessment. A contractor evaluating its own notice exposure should not assume the owner faces a mirror-image deadline. It doesn't.

§1.6.2: the certified-mail rule is strict, not a formality

Ordinary notices under §1.6.1 may be given electronically to a designated representative. Notice of a Claim is different: §1.6.2 deems a Claim notice duly served only if delivered by certified or registered mail, or by courier providing proof of delivery. An email that would satisfy every other notice clause in the contract does not serve a Claim under §1.6.2, not even where the owner had actual knowledge of the claim's substance. This is one of the easiest own goals in US construction practice: a contractor with a good claim, timely raised in substance, can still lose it on service alone. There is no reading of §1.6.2 in the source material that softens this into a curable formality. Treat it as an absolute procedural requirement every time a Claim is served.

FAR's notice-vs-cost-cutoff distinction

Federal practice draws a line that AIA practice does not: some FAR notice periods are entitlement bars, and some are only cost cut-offs, and confusing the two produces the wrong risk assessment.

FAR 52.249-10(b)(1) requires 10 days' written notice of the causes of delay to the Contracting Officer, extendable by the CO, and paragraph (b)(2) has the CO ascertain the facts and extend the time accordingly, with findings that are final and conclusive subject to appeal under the Disputes clause. This is an entitlement step with a built-in escape valve.

FAR 52.242-14 and 52.243-4 operate differently. Their 20-day provisions do not bar the claim. They bar recovery of costs incurred more than 20 days before the written notice. A contractor who notices late under these clauses still has a claim. It has simply forfeited the earliest slice of its cost recovery, with the cut-off running backwards from whenever notice actually lands. That is a materially different failure mode from AIA's 21-day bar, and the two should not be described with the same vocabulary. Both regimes carry a genuine hard stop, though: 52.243-4(f) and 52.242-14(c) bar any proposal or claim after final payment, with no CO discretion to revive it.

What Amatea/Grimberg takes away

None of the mechanics above are only about getting the paperwork right. Hitting every notice deadline still leaves the merits to prove. Amatea/Grimberg JV v Secretary of the Navy, No. 2024-1006 (Fed. Cir., 25 June 2025), holds that a Contracting Officer's grant of a time extension and release of liquidated damages does not establish excusable delay for the contractor's own affirmative claim. The court's language is unequivocal: CO findings of fact "are not binding upon the parties and are not entitled to any deference" once suit is brought. An administrative extension is not evidence of causation, and a contractor cannot bootstrap the CO's own relief from LDs into proof that its own delay was excusable. That argument does not work, and this is the case that closes the door on it.

The other US forms, and why EJCDC is the trap

AIA and FAR are not the only notice regimes in play, and the differences are not cosmetic:

FormPeriodTriggerNote
AIA A201–2017 §15.1.3.121 daysthe event or first recognition, whichever is laterCertified-mail service under §1.6.2
EJCDC ¶4.05.G30 daysfrom commencement of the eventThe longest period but the harshest trigger. It does not wait for recognition, so a latent or creeping delay can time-bar before anyone identifies it
ConsensusDocs 20014 + 21 daysnot statedDeemed denial on owner silence
DBIA 535reasonable time, not to exceed 21 daysnot statednot stated
AIA A141-2024 (design-build)unverified day countnot statedReplicates the certified-mail trap at §1.4.15.2. Replaces owner initial decisions with meet-and-confer or a project neutral

EJCDC's 30-day window looks like the most generous on paper. It is the opposite in practice: because the clock runs from commencement rather than recognition, a delay that develops gradually, the kind that is hardest to spot early, can already be time-barred by the time anyone would reasonably have identified it as a claim. A contractor working under an EJCDC form should treat every potential delay as notice-worthy from the moment it starts, not from the moment its significance becomes clear.

The absolute bars: after final payment, nothing survives

Three FAR clauses each bar relief after final payment, independently of every other deadline discussed above, and together they are the quiet killers of otherwise good delay claims: 52.243-4(f) bars any proposal after final payment. 52.242-14(c) requires the claim to be asserted not later than final payment, and 52.236-2(d) runs the same backstop for differing site conditions. A delay claim not asserted before final payment is dead regardless of the six-year CDA limitation period. The practical rule is to identify the projected final-payment date at the start of a claim, not to discover it at the end.

Place the Claim on one side of the §12.2.2 line first
Identify, before calendaring anything, which side of the §12.2.2 correction-period line a Claim falls on: §15.1.3.1 or §15.1.3.2 apply different notice regimes to the same Article 15.
Address the time request to the party and the IDM
Serve every §8.3.1 time request as an Article 15 Claim, addressed to the other party and the Initial Decision Maker, not as an informal Architect request.
Never serve a Claim by email
Serve AIA Claim notice by certified or registered mail, or proof-of-delivery courier, never email, regardless of actual owner knowledge.
Keep the 10-day and 20-day FAR clocks apart
Under FAR, distinguish the 10-day 52.249-10(b)(1) entitlement notice (extendable by the CO) from the 20-day 52.242-14/52.243-4 provisions, which only cut off early costs.
A grant of time is not proof of excusable delay
Do not rely on a CO's grant of time or release of LDs as proof of excusable delay for a separate affirmative claim. Build the causation case independently.
Fix the final-payment date at the start, not the end
Identify the projected final-payment date at the start of a federal claim, not the end. 52.243-4(f), 52.242-14(c) and 52.236-2(d) each bar relief after it, regardless of the six-year CDA period.

Fuentes y jurisprudencia

  1. AIA A201-2017 §15.1.3: Claims, time limits AIA A201-2017, §15.1.3.1 / §15.1.3.2§15.1.3.1 sets a 21-day window, running from the later of the event or first recognition, for Claims arising before or during the one-year correction period, with notice to the other party and the Initial Decision Maker. §15.1.3.2 removes that limit and the IDM referral for conditions first arising after the correction period.AIA clause text reconstructed from secondary sources: section numbers verified, exact wording not independently confirmed against the standard.
  2. AIA A201-2017 §1.6.2: Claim service requirement AIA A201-2017, §1.6.2Notice of a Claim is deemed duly served only if delivered by certified or registered mail, or by courier providing proof of delivery, unlike ordinary §1.6.1 notices, which may be electronic.AIA clause text reconstructed from secondary sources: section numbers verified, exact wording not independently confirmed against the standard.
  3. AIA A201-2017 §8.3.1: Delays and Extensions of Time AIA A201-2017, §8.3.1Lists the excusable-delay grounds and lets the Architect determine whether an unenumerated cause justifies delay. 2017 removed the requirement that the extension be effected by Change Order, leaving it ambiguous whether a §8.3.1 request is itself an Article 15 Claim.AIA clause text reconstructed from secondary sources: section numbers verified, exact wording not independently confirmed against the standard.
  4. AIA A201-2017 §15.1.1: Definition of Claim AIA A201-2017, §15.1.1Defines a Claim to include "a change in the Contract Time," expressly bringing time requests within Article 15's notice machinery.AIA clause text reconstructed from secondary sources: section numbers verified, exact wording not independently confirmed against the standard.
  5. FAR 52.249-10: Default (Fixed-Price Construction) FAR 52.249-10(b)(1)-(2)Requires 10 days' written notice of the causes of delay to the Contracting Officer, extendable by the CO, with the CO's findings on the extent of delay final and conclusive subject to appeal under the Disputes clause.Clause number and date from acquisition.gov, treated as primary for number/date only. The RFO is mid-flight: the clause as incorporated in a given contract may carry deviated text. Always read the contract, not the FAR site.Buscar en acquisition.gov
  6. FAR 52.242-14: Suspension of Work FAR 52.242-14(c)A 20-day cost cut-off, not an entitlement bar: it caps recovery to costs incurred within 20 days of written notice rather than extinguishing the claim.Clause number and date from acquisition.gov, treated as primary for number/date only. The RFO is mid-flight: the clause as incorporated in a given contract may carry deviated text. Always read the contract, not the FAR site.Buscar en acquisition.gov
  7. FAR 52.243-4: Changes FAR 52.243-4(d)-(f)Same 20-day cost cut-off structure as 52.242-14 for the constructive-change gateway, plus an absolute final-payment backstop barring any proposal after final payment.Clause number and date from acquisition.gov, treated as primary for number/date only. The RFO is mid-flight: the clause as incorporated in a given contract may carry deviated text. Always read the contract, not the FAR site.Buscar en acquisition.gov
  8. Amatea/Grimberg JV v Secretary of the Navy No. 2024-1006 (Fed. Cir., 25 June 2025) (nonprecedential)A Contracting Officer's grant of a time extension and release of liquidated damages does not establish excusable delay for the contractor's own affirmative claim. CO findings of fact are not binding once suit is brought.Secondary source. Not independently re-verified against the reporter this pass.Buscar en CourtListener
  9. EJCDC ¶4.05.G: notice of claim EJCDC, ¶4.05.GSets a 30-day notice period running from commencement of the event, not from recognition. The longest period among the major US forms but the harshest trigger, since it does not wait for the claimant to identify a latent or creeping delay.Reconstructed from secondary sources. Not independently confirmed against the standard.
  10. ConsensusDocs 200: notice and deemed denial ConsensusDocs 200Runs a 14-plus-21-day notice structure and deems a claim denied on owner silence, shifting the procedural burden differently than AIA or FAR.Reconstructed from secondary sources. Not independently confirmed against the standard.
  11. DBIA 535: notice of claim DBIA 535Requires notice within a reasonable time not to exceed 21 days, closer to AIA's structure than EJCDC's fixed commencement trigger.Reconstructed from secondary sources. Not independently confirmed against the standard.
  12. AIA A141-2024 §1.4.15.2: design-build Claim service AIA A141-2024, §1.4.15.2Replicates the A201 §1.6.2 certified-mail Claim-service trap for design-build work, while replacing owner initial decisions with a meet-and-confer process or a project neutral. The day count under its §15.1.3 analogue is unverified in this corpus.Reconstructed from secondary sources. Day count under its §15.1.3 analogue is . Not obtainable this pass.
  13. FAR 52.236-2: Differing Site Conditions FAR 52.236-2(d)Bars a differing-site-conditions claim not asserted before final payment, the same absolute backstop structure as the Changes and Suspension of Work clauses.Clause number from acquisition.gov, treated as primary for number/date only. The RFO is mid-flight. Always read the clause as incorporated in the contract.Buscar en acquisition.gov

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