Supply chain leaders face a second Trump tariff environment, and the National Law Review argues the playbook from the first round no longer applies. In a new checklist piece titled "Five Checks For … What Supply Chain Leaders Should Rethink in the Trump Tariff Environment 2.0," the publication frames the current moment as one that demands a structural rethink of how shippers, carriers and forwarders manage sourcing, contracting and customs exposure — not incremental adjustments.

The premise is straightforward. Tariff policy under the returning administration has moved from epismic shock to a standing feature of trade planning. Companies that treated the 2018-2020 rounds as a one-off disruption, absorbing duties or shifting a single lane, now find that approach inadequate. The legal review's five-point check is designed to force a systematic audit rather than a reactive fix.

The commercial stakes are concrete. Every percentage point of additional duty lands directly on landed cost, which means procurement teams must recalculate product-level economics across entire portfolios, not just headline import categories. Shippers sourcing from China and other tariff-targeted origins face margin compression that cannot be passed through to customers in full, forcing choices between absorption, re-pricing and relocation.

For carriers and forwarders, the consequences run through volumes and routing. Tariff-driven sourcing shifts reshape trade lanes — moving volume from one origin country to another changes port calls, transshipment patterns and equipment positioning. Forwarders, in particular, sit between the duty liability and the customer, and the checklist logic suggests they need to be explicit about who bears customs and tariff risk in their service terms.

The "rethink" framing matters legally. Existing supplier contracts, distribution agreements and purchase orders were largely drafted before the current tariff regime. Many lack tariff-adjustment clauses, force majeure language that covers trade measures, or price pass-through mechanisms that anticipate renewed escalation. The National Law Review's checklist approach pushes companies to review those agreements now, before disputes arise, rather than litigating ambiguity later.

Customs classification and valuation also return to the foreground. In a higher-tariff environment, the payoff from correct Harmonized System classification, first-sale valuation and use of trade programs such as foreign trade zones and duty drawback rises sharply. What was a routine compliance exercise becomes a material cost lever. Shippers that have not audited their tariff engineering position are, on this reading, leaving money on the table.

The checklist also speaks to diversification discipline. Rethinking sourcing in Tariff Environment 2.0 means qualifying alternative suppliers and origins with the same rigor applied to the original sourcing decision — customs risk, rules of origin exposure and the durability of any preferential treatment all need scrutiny before volume moves. A hasty shift from one tariff-exposed origin to another can create its own compliance and capacity problems.

The intended audience is broad: general counsel, supply chain executives, customs brokers and logistics providers who together determine how tariff exposure is allocated along the chain. The underlying message is that tariff risk is now a distributed commercial risk, and it should be managed in contracts, customs strategy and network design simultaneously.

The National Law Review does not predict specific rate moves or policy outcomes, but its framing is unambiguous on trajectory: tariff policy is expected to remain a live and shifting variable for the foreseeable term, and supply chain leaders who treat it as a permanent planning condition — with standing review mechanisms rather than one-time responses — will be better positioned for whatever the next round of measures brings.