Marine Insurance in 2026: Navigating the Coverage Process in a Changed Operating Environment

International Shipping News / Marine Insurance P&I Club News — 11/08/2026

Pricing Risk in a Changed Operating Environment

Marine insurance has always been a business of pricing what cannot be fully seen. Vessels operate in remote waters, cargoes cross jurisdictions, and the operational reality of a voyage often becomes clear only after it has ended. For centuries, the insurance industry has managed this uncertainty by refining the data, analytics, and contractual mechanisms that translate operational reality into priced risk. The global marine insurance market generates tens of billions of dollars in annual premium, with the International Group of P&I Clubs alone collectively insuring roughly 90% of the world's ocean-going tonnage — meaning that structural shifts in data reliability affect the foundation of global maritime trade coverage at scale.

What has changed in 2026 is the structural reliability of the data itself. The AIS signal that marine insurance workflows have depended on for two decades is increasingly being jammed or spoofed at scale in precisely the regions where insurance exposure is most concentrated. The shadow fleet operating outside conventional maritime enforcement now represents a meaningful share of global tanker capacity. Sanctioned entities cycle through flags, ownership structures, and insurance arrangements faster than screening tools can follow. Furthermore, open conflict in the Strait of Hormuz — which handles roughly a fifth of the world's seaborne oil — has forced insurers to reprice risk in a market where visibility is degraded and precedent is limited. This follows the pattern set during the 2024 Red Sea crisis, when Houthi attacks on commercial shipping forced war risk premiums to multiply virtually overnight and demonstrated how quickly operational risk can reprice when a major choke point becomes contested.

The four-stage marine insurance coverage process — underwriting, compliance screening, policy issuance, and claims handling — was not designed for this environment. Each stage now carries analytical and operational complexity that was not present, or not present at the same scale, five years ago. The following analysis walks through where this complexity manifests at each stage and what it means for insurers, brokers, and reinsurers.

Stage One: Underwriting in a Data-Compromised Environment

Underwriting is where the risk picture is built. The underwriter assesses the vessel, ownership, flag, trading pattern, cargo profile, and historical claims record, then prices coverage against expected exposure.

Two structural shifts have made underwriting analytically harder.

The erosion of AIS as a trusted single-source signal. GPS jamming affected 171,286 distinct vessels globally at least once in Q2 2026, with 3.35 million false ship-to-ship meetings recorded since Operation Epic Fury began on February 28, 2026. In these cases, injected positioning coordinates made vessels appear to rendezvous when no meeting took place. For an underwriter pricing a vessel that transits jamming-affected regions, the AIS-based voyage history underpinning historical loss modeling is no longer clean data. The vessel may have called at ports it never visited, or may have concealed calls at ports where it did call. Either possibility distorts the risk picture the underwriter is asked to price.

The growth of behavioral risk invisible to conventional identity screening. A vessel may pass flag verification, ownership review, and sanctions list checks while exhibiting behavioral patterns that mark it as high-risk. Windward tracked 2,157 unique cargo ships and tankers over 10,000 DWT conducting at least one prolonged dark activity event in Q2 2026 — nearly five times the 449 recorded in Q1. Each of those events represents a moment where the vessel's operational picture went dark for reasons that could be routine or could conceal sanctionable activity. Static underwriting inputs cannot distinguish between the two.

The consequence is that pricing accuracy now depends on behavioral intelligence in a way it did not before. A vessel's ownership documents may be clean while its operating pattern indicates elevated risk. Underwriters that price on documents alone are pricing on an incomplete picture.

The rising exposure environment is also visible in the market. P&I clubs raised Excess War Risk limits for the 2026 policy year, with cover for vessels near Russia, Ukraine, and Belarus rising from $100 million to $125 million — a signal about where insurers see the risk headed and what capacity is being built to address it.

Stage Two: Compliance and Sanctions Screening

Compliance screening runs alongside and after underwriting. The compliance team verifies that the counterparty vessel, beneficial owner, operator, and flag state do not appear on relevant sanctions lists, and that the transaction is permissible under applicable regulatory frameworks.

The screening problem has become structurally harder for three reasons.

The pace and scope of sanctions activity. Regulators worldwide made 486 vessel designations in Q2 2026, on top of 851 in Q1. The EU 20th sanctions package designated 46 ships during the quarter. This was followed by the EU 21st package, adopted on July 23, 2026, which introduced 218 new listings (48 individuals and 170 entities) and, for the first time, expanded designation criteria to include vessels providing services to shadow fleet ships — such as bunkering — regardless of whether the shadow fleet vessels themselves are individually designated. The U.S. designated 63 vessels in Q2, all Iran-related. The UK made 27 vessel designations. The volume and structural changes are challenging for screening workflows built around less frequent list updates and vessel-by-vessel review.

The growth of falsely flagged vessels and fraudulent registries. In Q2 2026, 275 internationally trading tankers were broadcasting the flag of a fraudulent registry. Windward has now identified 22 fraudulent ship registries, with Russia-linked tankers falsely claiming Syria and Myanmar flags for the first time during the quarter. Around 90% of tankers using fraudulent registries are Western-sanctioned. Of roughly 430 tankers currently active in the Iran trade, about 62% are falsely flagged and 87% are sanctioned. Static checks based on declared flag do not surface these patterns.

The coordination challenge across sanctions regimes. The OFAC-OFSI Comparative Overview, published on June 23, 2026, formally documents the differences between U.S. and UK sanctions frameworks across ownership calculations, terminology, jurisdictional reach, and enforcement mechanics. Compliance teams operating across both regimes must structure screening to satisfy the more demanding standard in each dimension — a heavier analytical requirement than either regime alone. These frameworks build on the G7 Oil Price Cap mechanism established in December 2022, which created the original Western service-provision carveout for Russian oil trade and whose enforcement architecture now operates alongside the expanding vessel designation landscape.

The insurance certificate itself has shifted from an administrative document to a piece of evidence in the sanctions enforcement environment. The U.S. Shadow Fleet Sanctions Act of 2026 (S.2904), if passed, would mandate sanctions on vessels that lack adequate marine insurance for moving Russian oil, uranium, or coal. Conversely, roughly a third of tankers crossing the Baltic in early 2026 presented insurance certificates from sanctioned Russian or Russian-linked insurers. For legitimate insurers, the existence of an insurance certificate no longer establishes compliance in itself. Insurers must now prove their coverage is clean and that their counterparty vessels are not part of the shadow fleet ecosystem the certificate could otherwise obscure.

Stage Three: Policy Issuance

Once underwriting and compliance are complete, the policy is drafted, contractual terms are negotiated, and coverage is bound. This stage appears administrative but carries analytical significance for two reasons.

Sanctions clauses and their interpretation. Sanctions clauses have become standard in most marine insurance policies, but the specific language and operational triggers vary significantly. The English Court of Appeal ruling in Tonzip Maritime (Singapore) Pte Ltd v 2 Rivers Pte Ltd, "The Catalan Sea" (May 28, 2026), is a recent example of how sanctions clauses in charterparties are being tested in court, with implications for how the same language operates in insurance policies. The specificity of the clause, the scope of trigger events, and the operational procedures for suspension or termination all determine whether the insurer's contractual position holds when a sanctions event occurs.

Coverage bifurcation complexity. The full EU maritime services ban was proposed and ultimately shelved in the 21st sanctions package, meaning European shipowners and marine service providers can continue moving Russian oil under the Oil Price Cap. The compromise leaves insurers operating in a hybrid framework: the LNG services ban starts January 1, 2027; targeted vessel and manager designations remain in effect; and the Oil Price Cap is frozen at $44.10 per barrel until July 2027 — but without the comprehensive maritime services restriction that had been under discussion. Policies drafted for the pre-2022 environment carry embedded assumptions that must be reviewed against the actual regulatory framework as it emerged from the 21st package, rather than the framework that had been anticipated.

The International Group of P&I Clubs' formal response to U.S. government sanctions guidance for maritime industries illustrates how the P&I community is engaging with regulators to clarify the operational parameters of coverage in the current environment.

Stage Four: Claims Handling

Claims handling is where the underwriting and compliance work done at policy inception meets the operational reality of what actually happened. In a stable environment, claims are a matter of establishing what occurred, verifying that the loss falls within the policy's coverage, and processing accordingly.

In 2026, several conditions have made claims handling analytically harder.

The reconstruction problem in jamming-affected regions. When a claim involves a vessel that operated in a GPS-jammed area, the AIS-based voyage history that claims teams normally use to establish what happened may contain injected positions or missing periods. Claim reconstruction becomes a multi-sensor intelligence exercise, drawing on satellite imagery, radio frequency detection, and behavioral pattern analysis to establish the actual voyage against the AIS record.

The sanctions overlay on claims. A claim on a vessel that turns out to have been involved in a sanctions-implicated voyage carries additional regulatory exposure beyond the operational claim itself. Claims teams must be able to establish — and document defensibly — that the covered voyage did not involve sanctionable activity. This requires the same behavioral and identity intelligence that underwriting and compliance use, applied retrospectively to the specific voyage in question.

The constructive total loss environment in the Middle East Gulf. Vessels stranded during the Hormuz closure earlier in 2026 raised the constructive total loss clock for war risk underwriters. Many war risk clauses set a 12-month detention period before a constructive total loss claim can be made, with a few policies still operating on a 6-month period. Claims teams have been actively assessing whether vessels stranded in the Middle East Gulf may be declared constructive total losses even without sustaining physical damage. Loss of hire claims are also beginning to come through, though not every loss of hire policy will respond without physical loss or damage.

The English Court of Appeal ruling on sanctions clauses referenced above is a recent example of how the legal interpretation of coverage is being tested in the current environment. Claims teams operating across multiple jurisdictions must track this evolving legal landscape alongside operational and regulatory developments.

What Ties the Four Stages Together

The complexity across underwriting, compliance, policy issuance, and claims handling all traces back to the same underlying condition: the data that marine insurance workflows have historically depended on is now less reliable in exactly the regions where insurance is most needed.

AIS is jammed or spoofed in the Middle East Gulf, the Black Sea, the Mediterranean, and other high-exposure regions. Ownership chains are structured to defeat beneficial ownership discovery. Flags are cycled at unprecedented rates through registries that may or may not be legitimate. Sanctions designations arrive faster than screening tools can absorb. Insurance certificates have shifted from administrative artifacts to pieces of evidence in the enforcement environment.

The four stages of the coverage process were designed for an operational environment in which primary data inputs — especially AIS and declared vessel documentation — could be trusted as broadly reliable. That trust is no longer generally warranted in the operational regions where insurance exposure concentrates. The operational response is behavioral and multi-sensor intelligence. Verifying what vessels actually do, independent of what they broadcast or declare, is now a foundational requirement across all four stages of the insurance workflow.

Behavioral Intelligence in the Marine Insurance Workflow

Windward's Maritime AI™ Platform provides the behavioral intelligence, multi-sensor verification, and vessel identity work that supports each stage of the marine insurance coverage process.

Know Your Vessel (KYV™) consolidates the vessel-specific risk picture that underwriters need to price beyond declared documents alone. Behavioral risk profiling across multiple voyages surfaces patterns that static checks miss — whether the workflow involves underwriting a new counterparty, screening a transaction, or reconstructing a claim.

Multi-Sensor Intelligence fuses AIS, satellite imagery, radio frequency detection, and behavioral context into an operational picture that verifies what vessels actually did, independently of what their AIS broadcasts show. This supports defensible compliance screening in jamming-affected regions and defensible claims reconstruction when AIS data is unreliable.

Importantly, the presence of a vessel in a GPS jamming-affected area is not, by itself, a behavioral risk indicator. GPS jamming is something happening to a geographic area, not something a vessel is doing. Vessel risk is assessed independently based on behavioral patterns and operating history.

Where This Leaves Marine Insurance

The response is not to abandon the four-stage process. Underwriting, compliance screening, policy issuance, and claims handling remain the operational architecture of marine insurance and are unlikely to change in structure. What is changing is the intelligence infrastructure each stage now depends on.

Behavioral analysis, multi-sensor verification, and identity intelligence that does not rely on cooperative signaling from the vessel are becoming the foundational inputs that enable each stage to work reliably in the current environment. The insurers, brokers, and reinsurers positioned for the operating environment ahead are those treating the intelligence layer as a strategic investment rather than an operational cost.

The coverage process still runs on the same four stages. It runs on different inputs.

Source: Windward