Air Freight Customs Clearance: What Importers Must Know in 2026
As of May 30, 2026, air freight customs clearance has become one of the most scrutinized points in the U.S. import supply chain. CBP has intensified air cargo screening across major gateway airports — including JFK, LAX, ORD, and MIA — driven by rising e-commerce volumes, continued Section 301 tariff enforcement, and tightening rules around de minimis eligibility. If your goods move by air and you are not prepared, delays are no longer the exception.
What Happened
Over the first half of 2026, CBP significantly expanded its Air Cargo Advance Screening (ACAS) program and increased the rate of intensive examinations at air ports of entry. This follows a multi-year trend: U.S. air cargo import volumes exceeded 8.5 million metric tons in 2025, according to the International Air Transport Association (IATA), straining CBP’s examination resources at gateway facilities.
Simultaneously, the U.S. government moved to restrict the de minimis exemption — the rule under 19 USC § 1321 that previously allowed shipments valued under $800 to enter the U.S. duty-free with minimal documentation. Proposed regulatory changes, which have been in progress since late 2024, target goods of Chinese origin and those subject to Section 301 tariffs specifically, effectively removing millions of small air freight shipments from de minimis eligibility.
CBP has also issued updated guidance under 19 CFR Part 128 (Express Consignments) requiring more detailed commodity descriptions, accurate HTS codes at the 10-digit level, and correct declared values on all air cargo entries — regardless of shipment size. Brokers filing through the ACE Portal are now required to include the manufacturer’s identification code (MID) on entries for goods from high-risk trade lanes.
The practical result: shipments that previously cleared in hours are now held for document review or physical examination more frequently, particularly for goods from China, Vietnam, Cambodia, and Mexico.
Why It Matters to Importers
The compliance bar for air freight has risen sharply. The following table summarizes who is affected, what changes, and how severe the impact is.
| Affected Party | What Changes | Severity |
|---|---|---|
| E-commerce importers (China origin) | De minimis eligibility restricted or eliminated for Section 301 goods | High |
| Small parcel shippers via express carriers | More documentation required; duties now assessed on previously exempt shipments | High |
| Pharmaceutical importers | FDA admissibility holds now triggered more frequently for incomplete prior notice filings | High |
| Electronics importers | Enhanced HTS code scrutiny; Section 301 duties (up to 25%) strictly enforced | High |
| Apparel and textile importers | Country-of-origin documentation required; AD/CVD order checks at entry | Medium |
| Freight forwarders filing as brokers | Must ensure ACE enrollment is current; liability for mis-declared values | Medium |
| Low-volume occasional importers | May now need a formal entry where informal entry previously sufficed | Medium |
Definition Block — Air Cargo Advance Screening (ACAS): ACAS is a CBP program requiring air carriers and freight forwarders to transmit advance cargo data electronically before a flight departs for the United States. CBP uses this data to assess security and trade compliance risk before the aircraft lands. Failure to transmit ACAS data accurately and on time can result in a “do not load” order or intensive examination upon arrival.
Affected Goods, Industries, and Trade Lanes
CBP’s current enforcement priorities concentrate on specific commodity categories and origin countries.
High-risk commodities by HTS chapter:
- Chapter 84–85 (electronics, machinery) — Section 301 tariffs up to 25% on Chinese-origin goods
- Chapter 61–62 (apparel, knitted and woven) — AD/CVD orders active on multiple countries; check enforcement.trade.gov/adcvd for current orders
- Chapter 30 (pharmaceuticals) — FDA prior notice required; FDA holds triggered by incomplete filings
- Chapter 87 (vehicles and parts) — increased valuation scrutiny; transfer pricing examined
- Chapter 95 (toys, games) — CPSC admissibility requirements; common e-commerce category
Primary air trade lanes under scrutiny:
- China → U.S. (JFK, LAX, ORD) — Section 301 enforcement, de minimis restriction
- Vietnam → U.S. — transshipment origin verification
- Mexico → U.S. (via air at DFW, LAX) — USMCA origin claims being verified more carefully
- Southeast Asia → U.S. — solar panel and steel derivative enforcement
Importers can browse CBP-licensed customs brokers by U.S. port of entry to find specialists at the specific gateway airport handling their shipments.
What Importers Should Do Now
These six steps address the most common causes of air freight clearance delays and compliance failures.
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Audit your commercial invoices. Every invoice must include: seller and buyer name and address, a complete and accurate description of goods, 10-digit HTS code, declared value in USD, country of origin, and quantity and unit of measure. Vague descriptions like “parts” or “accessories” will trigger holds under current CBP guidance.
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Confirm your HTS classification is current. Tariff rates and Section 301 applicability change. Use hts.usitc.gov to verify your 10-digit HTS code is correct as of the shipment date. Misclassification is the leading cause of post-entry audits and penalties under 19 USC § 1592.
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Check whether your goods are subject to AD/CVD orders. Search the AD/CVD orders database at enforcement.trade.gov/adcvd. If an order applies, your customs broker must deposit the estimated duty at entry — failure to do so creates a liability that compounds with interest.
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Work with a licensed customs broker, not just a freight forwarder. Only CBP-licensed customs brokers are legally authorized to file customs entries on your behalf under 19 CFR Part 111. Many freight forwarders offer clearance services but route entries through a brokerage partner — know who is actually filing and ensure they have active ACE credentials. Search all CBP-licensed customs brokers by location and specialty to find a qualified professional.
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Verify de minimis eligibility before shipment. If your goods are of Chinese origin and classified under a Section 301-affected HTS heading, do not assume the $800 de minimis threshold applies. File a formal entry or informal entry as appropriate, and budget for duty payment at time of entry.
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Request a binding ruling for recurring shipments. If you import the same product regularly, a CBP Binding Ruling from rulings.cbp.gov locks in your HTS classification and duty rate. This eliminates classification risk and provides a defense in any post-entry audit.
If you need a broker with specific expertise — in pharmaceuticals, electronics, or express consignment clearance — browse brokers by specialty to find professionals matched to your commodity.
Background Context
Air freight customs clearance in the U.S. is governed primarily by 19 CFR Part 128 (Express Consignments), 19 CFR Part 141 (Entry of Merchandise), and 19 CFR Part 163 (recordkeeping). CBP processes customs entries through the Automated Commercial Environment (ACE), the government-wide trade platform that replaced the legacy ACS system.
For commercial air shipments, the standard entry types are:
- Informal Entry — for goods valued under $2,500 (or $2,000 for textiles), filed on CBP Form 3461 or its ACE equivalent
- Formal Consumption Entry (Type 01) — required for goods valued at $2,500 or more, or for goods subject to quota, AD/CVD, or agency admissibility requirements regardless of value
The ACAS program, which requires pre-departure data transmission, has been mandatory for direct flights to the U.S. since 2021. It is modeled on the maritime Importer Security Filing (ISF) requirement and serves the same dual function: trade compliance screening and cargo security targeting.
For importers new to this process, 3PL with customs clearance and warehousing explained is a useful companion resource covering how third-party logistics providers interact with the customs entry process.
The National Customs Brokers & Forwarders Association of America (NCBFAA) is the primary industry association for licensed brokers and publishes compliance alerts when CBP issues new guidance. Subscribing to their updates is a low-cost way to stay current on enforcement priorities.
Frequently Asked Questions
What is air freight customs clearance?
Air freight customs clearance is the process by which U.S. Customs and Border Protection (CBP) reviews, assesses duties on, and releases cargo arriving by air. It involves submitting an entry, paying applicable duties and fees, and receiving a CBP release before goods can move into U.S. commerce. Most commercial air shipments require a licensed customs broker to file the entry through the ACE Portal.
How long does air freight customs clearance take in 2026?
For most commercial air shipments with complete, accurate documentation, CBP targets a release within a few hours to one business day. However, shipments flagged for examination — whether physical inspection or document review — can take 2 to 5 business days or longer. Incomplete filings, missing commercial invoices, or admissibility holds from partner agencies like the FDA are the most common causes of delay.
Who is affected by current CBP air cargo enforcement priorities?
CBP’s current air cargo enforcement focuses on e-commerce shipments, low-value de minimis packages, high-risk trade lanes (primarily China, Southeast Asia, and Mexico), and goods subject to Section 301 tariffs or antidumping/countervailing duty orders. Importers of electronics, apparel, pharmaceuticals, and consumer goods face the highest scrutiny as of May 2026.
What should importers do right now to avoid air freight clearance delays?
Importers should verify all commercial invoices include accurate HTS codes, country of origin, and a complete description of goods before shipment departs. They should confirm their customs broker is enrolled in ACE and filing advance cargo data on time. Shipments subject to Section 301 tariffs or AD/CVD orders require additional review — working with a licensed broker experienced in your commodity is the most effective safeguard.
Where can importers find official CBP guidance on air freight clearance?
Official guidance is available directly at CBP.gov, including ACAS program requirements, entry type guidance, and broker requirements. The Harmonized Tariff Schedule at hts.usitc.gov provides duty rates by HTS code. The NCBFAA publishes compliance resources and can help importers locate licensed professionals. You can also browse brokers by state to find a licensed customs broker in your region who can guide you through the clearance process for your specific commodity.