General contractors and property owners frequently carry subcontracts that require specific insurance coverage and specific endorsements. They just as frequently have not confirmed whether the subcontractors actually met those requirements. Under the prior regime, that gap was uncomfortable but manageable: there was usually enough time to investigate and patch the documentation. Under the AVOID Act's 90-day window for contractual impleader claims, the gap between contract requirements and actual coverage is a forfeiture mechanism. If you cannot establish compliance within the deadline, you may lose the claim entirely.
The problem is more common than most risk managers assume, and it is more consequential than many defense attorneys have time to investigate. Understanding where the gaps live is the first step toward closing them before they matter.
The insurance requirement is in the contract; the coverage is in the policy
A construction subcontract typically specifies the types of coverage required, the minimum limits, the required endorsements, and the parties that must be named as additional insureds. That specification is a contractual obligation. Whether the sub actually fulfilled that obligation depends on its insurance policy, not on the certificate of insurance it provided.
This distinction creates a structural gap. The GC sees the certificate. The policy is held by the subcontractor. The endorsements are attached to the policy. The question of whether the sub's actual coverage matched the contract requirement is often not investigated until there is a reason to care, which, under the AVOID Act framework, is 90 days after service.
When that investigation finally happens, the discrepancies that surface tend to fall into four recurring categories.
The additional insured status gap
Most construction subcontracts require the sub to name the GC and property owner as additional insureds on its commercial general liability policy. "Additional insured" means the GC can tender its defense to the sub's insurer and potentially have that insurer cover a judgment against the GC for claims arising from the sub's work.
The gap appears in several ways. The sub's policy may contain an additional insured endorsement that applies only to "ongoing operations," not "completed operations." If the claim arises after the project is finished, which is common in construction tort cases that go to litigation years after completion, the GC may not be an additional insured for the claim at issue. The sub's subcontract required completed operations coverage; the sub obtained only ongoing operations coverage; the GC never confirmed the distinction.
Alternatively, the additional insured endorsement may use limiting language that narrows coverage below what the subcontract required. Some endorsements provide additional insured status only for liability "directly caused by" the named insured's work, which is narrower than the standard "arising out of" formulation. If the contract required broader coverage and the endorsement provides narrower coverage, the GC's additional insured status may not respond to the claim as expected.
The primary and non-contributory gap
Construction subcontracts routinely require that the sub's policy be primary and non-contributory, meaning that the sub's policy pays first and the GC's policy is not called upon to contribute until the sub's policy limits are exhausted. Without a primary and non-contributory endorsement on the sub's policy, both policies may apply on a pro-rata basis, which means the GC's carrier participates in the loss alongside the sub's carrier.
This endorsement is specifically required in most major construction subcontracts, and it is frequently absent from subcontractor policies. Brokers for smaller subcontractors sometimes add the endorsement to the certificate without confirming it exists on the policy. The GC's COI file shows the endorsement requested; the policy does not contain it.
When the GC's carrier discovers this at the claim stage, it may seek contribution from the sub's carrier on a pro-rata basis. The negotiation of that contribution dispute happens outside the litigation itself, but it affects the GC's net cost even if the impleader claim succeeds.
The waiver of subrogation gap
A waiver of subrogation endorsement prevents the sub's insurer from bringing a subrogation claim against the GC for amounts the insurer pays. Without this endorsement, a sub's carrier that pays a workers' compensation claim, for instance, retains the right to pursue the GC for contribution. The GC's subcontract required the waiver; the sub's policy does not contain it; the GC did not check.
Waiver of subrogation issues surface most often in workers' compensation claims, where the sub's carrier may be seeking recovery from multiple parties after paying a large benefit. The GC that thought it was protected by its subcontract discovers that the protection it expected does not exist because the required endorsement was never obtained.
The coverage limit gap
Subcontracts specify minimum coverage limits: typically a per-occurrence limit and an aggregate limit for commercial general liability, along with umbrella or excess requirements above those limits. Subcontractors whose policy limits have been reduced by claims on other projects may be carrying an aggregate limit that is partially eroded, such that the coverage available for a new claim is less than the contract requires. The COI shows the original aggregate limit; the actual available coverage is less.
This is not a documentation failure in the same way as a missing endorsement. It is a monitoring failure: the GC obtained a COI at contract execution but did not verify mid-project or post-project whether the sub's aggregate had been eroded by other claims. Under the AVOID Act framework, if the sub's available coverage does not meet the contract requirement at the time of the claim, the failure-to-procure argument becomes complicated.
Why these gaps have a direct AVOID Act consequence
The AVOID Act creates a two-track impleader scenario for construction defendants. The first track is contractual indemnification: the GC seeks to transfer its Labor Law liability to the subcontractor whose employee was injured, based on the indemnification clause in their subcontract. The second track is failure to procure insurance: if the sub did not maintain the coverage the contract required, the GC has a separate claim for the loss caused by that failure.
Both tracks depend on documentation that proves the contractual obligation and establishes how the sub failed to meet it. The indemnification track depends on the contract. The failure-to-procure track depends on both the contract and evidence that the sub's actual coverage fell short of the requirement.
If the GC cannot establish the coverage gap within the 90-day window because its COI records are incomplete or outdated, it may lose the failure-to-procure claim even if the gap existed. The claim is not waived because the GC failed to notice the gap; it may be forfeited because the GC cannot prove it within the statutory period.
Platforms like TrustLayer verify that subcontractor certificates and endorsements meet your specific contract requirements, surfacing coverage gaps before a claim arrives so you have the documentation needed to support a failure-to-procure impleader claim within the AVOID Act's 90-day window.
Closing the gap before litigation pressure arrives
The practical response to coverage gaps is systematic verification at contract execution and ongoing monitoring through the project lifecycle and into the completed operations period.
At contract execution, verification should include confirming that the sub's policy limits match the contract requirements, confirming that completed operations coverage is in place for the required period, obtaining copies of required endorsements rather than relying on the certificate, and confirming that the additional insured endorsement language matches the coverage required by the contract.
During the project, verification should include monitoring for aggregate erosion if the sub is carrying multiple projects, confirming that renewal certificates arrive before expiration, and updating the compliance record when the project closes to reflect the completed operations status.
After project completion, the completed operations period requires ongoing monitoring until the applicable statute of limitations expires. Construction tort claims in New York can be filed years after project completion; the GC's exposure does not end at project closeout.
The coi-tracking-spreadsheets article covers the monitoring infrastructure needed to sustain this verification process. The compliance checklist provides a structured framework for auditing your current insurance documentation posture across all active and recently closed projects. For a view of how the AVOID Act's deadlines interact with these documentation requirements, the avoid-act-deadlines overview maps each claim type to the applicable timeline.
The coverage gap between contract requirement and actual policy is not an unusual defect in poorly managed subcontractor relationships. It is a routine condition in even well-managed ones, because the systems for confirming compliance are often disconnected from the systems for tracking coverage. The AVOID Act has attached a deadline to that disconnection. Closing the gap systematically, before service, is now a compliance requirement, not just a risk management best practice.