Rethinking Import Compliance: Why Aerospace Companies Must Act Now

Walk into the trade compliance office of almost any aerospace manufacturer and you will find the same architecture. On one side sits a deep, well-funded export controls function: jurisdiction and classification determinations, license management, technology control plans, empowered officials, recordkeeping refined over decades of ITAR and EAR practice. On the other side sit the imports — a broker relationship, a duty bill that rounds to zero, and a filing drawer.

Nobody built it that way out of neglect. They built it that way because it was rational.

An architecture built on zero

Since 1980, the Agreement on Trade in Civil Aircraft has allowed qualifying civil aircraft, engines, parts, components, and subassemblies to enter major markets duty-free. In the United States, that regime underpins a roughly $75 billion annual aerospace trade surplus — one of the few large surpluses American manufacturing still runs.

Compliance investment follows consequence. An export violation carried criminal exposure, debarment, and the loss of the license to operate. An import error, in a zero-duty world, carried an administrative correction. So the industry directed its discipline where the stakes were — outward, at the export line — and treated the import declaration as paperwork. At a duty rate of zero, paperwork was all it was —until 2025.

Two things happened in the last 15 months. Tariffs reached the aerospace bill of materials. And then, separately and more quietly, the enforcement system around every import entry was redesigned.

The zero disappeared from the bill of materials

The first change is the one on the P&L. In April 2026, the Section 232 tariffs on steel, aluminum, and copper were restructured to apply to the full customs value of covered products — no longer just the metal content — at 50% for articles made entirely or almost entirely of metal, with 25% and 15% tiers for derivative articles substantially made of it. Fasteners, castings, machined structures, wiring: aerospace hardware sits throughout those lists. Entries now also carry melt-and-pour and smelt-and-cast origin reporting — a data field most aerospace import files were never built to hold. Major primes have already begun disclosing tariff costs as a line item in quarterly results.

Then, on July 9, the sector received its own Section 232 decision. The Commerce Department's year-long investigation into commercial aircraft, jet engines, and parts ended with an affirmative national security finding — and a recommendation of no immediate tariffs. Instead, Commerce and USTR were directed to negotiate agreements with trading partners and update the President within 180 days, with the authority to impose tariffs expressly reserved if the talks fail. That places a decision point in early January 2027, with the duty-free regime itself now sitting on the negotiating table.

Around both moves, the floor shifted: proposed Section 301 actions now span economies covering essentially all U.S. imports, and the end of de minimis turned every low-value spare-parts shipment — including routine AOG movements — into a formal, data-bearing customs entry.

Enforcement didn't just rise. It was redesigned.

Here is the part of the story receiving far less attention than the tariff headlines, and it matters more.

On June 3, 2026, a separate executive order — "Strengthening Customs Enforcement" — directed CBP to rebuild the machinery around the importer of record. The direction is unambiguous. More audits. Aggressive use of liquidated damages against bonds. A minimum penalty mitigation floor of 50%, sharply reducing CBP's discretion to settle violations down. A "good standing" requirement for every importer of record, with risk-based tiers built from compliance history and audit results — and loss of the ability to import for those who fall out of it. Expanded disclosures: beneficial ownership, domestic assets, business affiliations, supply-chain and production-method information, even documentation the foreign exporter filed with its own customs authority.

And the order names its enforcement priorities: misclassification, undervaluation, illegal transshipment, and forced labor. It specifically targets the structures companies adopted as tariffs rose — unsupported classification changes, origin changes, and invoices that split research, development, engineering, and design charges away from customs value. Anyone who knows aerospace knows why that last item should command attention: engineering charges, tooling, and design assists moving between related parties across borders are not an edge case in this industry. They are how the industry works.

The implementation waves land on a schedule: the first measures around September 2026, the rest by roughly year-end. Read that against the aircraft negotiation calendar and one structural fact emerges: the enforcement upgrade arrives before the tariff decision does.

Duty-free was never audit-free

It is tempting for a duty-free industry to conclude that none of this applies to it. That conclusion fails on the mechanics.

Duty-free entry under the Civil Aircraft Agreement is not the absence of a customs event — it is a claim. It requires certification that the article is for use in civil aircraft, in manufacture, repair, maintenance, rebuilding, modification, or conversion, with records to support it. And most of the tariff lines eligible for that treatment are not aviation-specific at all: pumps, filters, tires, gaskets, wiring — the same codes every other industry imports at duty. For decades, the gap between a rigorously supported claim and a casually filed one was academic, because the surrounding rates were low. With 25% to 50% sitting on adjacent lines, that gap is now the exact seam an audit is designed to test — because the value of the claim, used correctly or incorrectly, is finally measured in millions per program.

The same logic runs through valuation and origin. Customs penalty exposure is calculated, in large part, from the revenue at stake. For most aerospace entries, that number was effectively zero for forty-six years. It isn't anymore — and the new mitigation floor means that when it is assessed, less of it can be negotiated away.
 

The mirror the industry already owns

Here is the counterintuitive good news: aerospace does not need to invent import compliance. It already owns the operating system — it has simply been pointing it in one direction.

The export function's disciplines map almost one to one. Jurisdiction and ECCN classification becomes tariff classification governance. Documented license determinations become documented origin, valuation, and duty-free-eligibility determinations. Technology control plans become supply-chain and metal-origin traceability. The empowered official becomes an accountable owner of the import entry. The evidentiary recordkeeping standard is the same standard — applied to what the company buys instead of what it sells, on data the company already generates: what was purchased, from whom, made of what, classified how, valued at what, claimed under which provision, and provable on demand.

That is not a startup project. It is a mirror.

Back to that office

The architecture in that compliance office was never wrong. It was built for a world in which the only trade question that could genuinely hurt an aerospace company was *who are we allowed to sell to.* That question now has a twin, with deadlines attached: *what are we actually paying to buy — and can we prove every line of it?*

The negotiators have until January to decide what happens to duty-free. The enforcement rules change months before that, no matter what they decide. Which means the industry does not get to wait for the answer before it acts on the question.

The export bench stays. The filing drawer goes.