You must decide whether a customer delivery remains viable after an interstate shock closes the planned route. The exposure unit is the contracted volume that must arrive before inventory runs out. The shock reaches that unit through transit time, delivered cost, insurance, bank acceptance and legal access.

The scenario team proposes another hub, distributor and payment bank. Each substitute appears to restore capacity within the chosen scenario horizon and cost limit. Each also changes the legal transaction that compliance reviewed for the original plan. A route that works physically can still fail because the carrier, owner, destination or payment path falls within a sanctions measure.

Define the decision before testing the workaround. A country score cannot tell you whether the shipment arrives. Start with the volume, deadline and maximum delivered cost that the decision can tolerate. Then trace the state action through one explicit channel to that threshold.

The IMF’s 2025 framework separates trade, finance, supply, capital-flow and uncertainty channels. It also examines exposure over 7 and 21 trading days. Your operating map may use different horizons. It still needs a stated event, channel, exposed node and decision threshold.

Record gross and net exposure separately because substitution can change volume, cost and timing. The original route may close while the commodity price rises. The replacement route may restore volume while consuming the margin. A bank may accept the customer and reject the correspondent path. Those effects cannot share one undifferentiated geopolitical score.

Keep severity, horizon and probability on separate lines. They answer different questions, so combining them hides the assumption driving the loss. Severity defines the interrupted flow and the operational or financial consequence you model. Horizon defines how long the interruption, inventory draw and recovery continue. Probability belongs to the forecasting process and should retain its own evidence and owner.

The World Bank’s 2023 oil exercise used 3 supply cases. Its medium case removed 3–5 million barrels per day and produced an initial modelled price increase of 21%–35%. Its large case removed 6–8 million barrels per day and produced 56%–75%.

Those are conditional model results produced by stated supply assumptions and model relationships. They do not state the chance of either disruption. Apply the same discipline to your shipment before presenting the workaround to a decision-maker. Show the loss if the route closes for the chosen horizon, then show the separate probability assigned to that branch and the recovery condition that ends it.

Measure substitution as constrained capacity. Scenario teams overstate resilience because they count a named alternative before testing throughput and execution. A hub on a map supplies no capacity by itself. The usable figure is the volume that arrives within the required cost and time.

The IEA’s February 2026 factsheet recorded nearly 20 million barrels per day through Hormuz in 2025, around 25% of world seaborne oil trade. Potential pipeline bypass capacity was only 3.5–5.5 million barrels per day. The gap shows why “use the bypass” cannot close a scenario assumption.

Test port and pipeline capacity, vessel class, handling equipment, inventory cover, charter availability, insurance and contract rights. Add the extra transit days and delivered cost. Then apply the legal gate before any restored volume enters the decision paper. Capacity that a prohibited carrier or bank must provide remains unavailable.

Rebuild the substitute as a complete transaction. Screening the proposed supplier first feels efficient because the name is easy to obtain. It fails when an unlisted owner, restricted service, territorial rule or payment nexus decides the case. The European Commission’s 2023 guidance directs EU operators to examine direct and indirect stakeholders, end users and ownership or control.

Write five fact groups before screening: parties, property, conduct, route and payment. Include representatives, direct and indirect owners, goods, software, services, origin, transit, destination, end use, carrier, insurer, currency and every payment bank. State which legal entities and people perform or approve each act.

Now map jurisdiction across every party, act, system and location in the substituted chain. An EU national acting abroad, a UK employee, a US financial institution, a vessel flag or conduct inside a territory can change the applicable rules. The substitute bank may therefore create the very restriction that the original route avoided.

Resolve names against the governing measure. A screening alert pauses the case because similarity cannot determine legal effect. OFAC FAQ 5 uses a 5-step method for a live transfer: identify the list, compare entity type, compare the full name, collect other identifiers and assess the combined similarities.

Document a false-positive release with the complete listed entry and the distinguishing identifiers. Keep the case held when identity remains unresolved. Then continue into ownership and activity analysis. A clear name result leaves both the ownership question and the activity prohibition open.

Distinguish blocking, sectoral and territorial rules. Teams lose viable alternatives when every list entry receives blocking treatment. They also approve prohibited conduct when no name appears. The exact regulation, order, directive and licence determine the result.

EU Regulation 269/2014 Article 2 freezes listed persons’ funds and economic resources and prohibits making value available to them. Under US practice, OFAC FAQ 56 says an SSI entry alone does not require blocking, although its directive-specific restrictions still apply. Territorial restrictions can prohibit covered services, goods or investment without any listed counterparty.

For each regime, record the bound person, legal nexus, controlled act, target or territory and available authority. This turns “sanctions risk” into a decision. The alternative either proceeds under stated conditions, remains held, requires redesign or leaves the scenario.

Apply the ownership or control test of that regime. A group-wide threshold fails because the legal tests differ. Under OFAC’s general rule, blocked persons’ direct and indirect ownership aggregates at 50% or more. Two blocked owners with 25% each therefore block the entity. Control alone does not automatically block it under that rule.

The UK test uses more than 50% ownership or voting rights. It also tests board-majority appointment rights and practical control over affairs. OFSI does not simply aggregate unrelated sub-threshold holdings. Preserve the dated ownership chart, source documents and analysis for each substitute.

Count capacity only after legal release. A promising workaround should carry zero available volume while a true match, prohibition or licence condition remains unresolved. This prevents a conditional alternative from reducing the reported exposure before anybody can execute it.

A supported false-positive release may clear the identity issue. An exception or licence must cover every necessary act. OFAC recognises 2 licence forms: a general licence covers a transaction class, while a specific licence gives written authority to a particular person for a particular transaction. All licence conditions must be observed across the transaction’s full execution period.

Treat expiry, reporting, permitted accounts, parties and purpose as operating constraints. Historical OFAC General Licences 3 and 11 allowed 30 days for specified wind-down acts. They permitted only the specified wind-down activity during the stated authorization period. A pending application and a convenient bank opinion supply no authority.

Re-screen when a material fact changes. Approval describes one transaction at one time. A replacement vessel changes parties, ownership, services, flag and the approved route. A new bank changes payment nexus and may introduce a different financial system. A revised ownership chart may change blocking status. A new designation changes the governing facts without changing the contract.

Put owner, counterparty, carrier, route, destination, goods, service, currency, bank, list and licence under change control. OFAC’s 2019 framework expects controls to identify, interdict, escalate, report and record potentially prohibited activity. Repeat the legal test at shipment and payment when those facts can change.

Close the workaround with a named disposition and its evidence. Keep shipping and payment status separate throughout execution, reconciliation and final case closure. Under US rules, blocked and rejected transactions have different consequences, although both reports are due within 10 business days under 31 CFR 501.603 and 501.604. Only a released, authorised and executable path reduces the scenario exposure.