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Section 321 is a CBP shipment release type for low-value shipments valued at less than $800. These eCommerce shipments can be imported by a person or company every day as long as the shipment value is less than $800. CustomsCity Global Solutions provides upload file formats in JSON or CSV allowing a company to upload thousands of shipments at a time saving you time & money.
Carriers complete their completed eManifest Request form (see below) and accompany their pro-bill and commercial invoice and send to CustomsCity using one of the following ways:
After CustomsCity receives your paperwork, it will be reviewed by one of our compliance specialists who will verify that all the required information is available on the forms.
After verification of the paperwork the next steps in the eManifest process are as follows:
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ACE Truck eManifests must be filed one (1) hour before arriving at the border.
FAST shipments can arrive 30 minutes after filing an ACE Manifest.
ACE Manifests can be filed as early as a month (30 days) in advance and no less than one hour before arrival at the border.
ACE (Automated Commercial Environment) is the US Customs and Border Protection (CBP) mandate requiring ACE manifest trucks carrying commercial shipments to send trip & shipment data to CBP for risk assessment purposes. ACE manifest trip data consists of truck, trailer, and driver data. ACE manifest shipment data consists of the pro-bill and commercial invoice information.
ACI (Advance Commercial Information) is the CBSA Canada Border Services Agency mandate requiring ACI manifest trucks carrying commercial cargo to send trip & shipment data to CBSA for risk assessment purposes. ACI manifest trip data consists of truck, trailer, and driver data. ACI manifest shipment data consists of the pro-bill and commercial invoice information.
ACE Manifest supports the following shipment types:
The Standard Carrier Alpha Code (SCAC) is a unique four-letter code used to identify transportation companies. SCAC codes can be obtained from the National Motor Freight Traffic Association (NMFTA).
SCAC codes are a mandate for filing of ACE & ACI Truck eManifests.
A PARS (Pre-Arrival Review System) number and CCN (Cargo Control Number) are synonymous these days. ACI requires every shipment to be identified with a CCN. Before ACI, there was a requirement for a barcoded PARS number. The names PARS number and CCN mean the same thing in the industry today.
CBSA may issue AMPS (Administrative Monetary Penalty System) penalties for ACI manifest non-compliance.
A possible AMPS penalty is C023- Carrier failed to report a conveyance before arrival. Fines per occurrence are the following:
In case a Truck arrives at the US border without the proper ACE Manifest on file, the Truck will not be allowed to cross the border and there can be a penalty levied on the Truck by CBP. Usual first-occurrence fines start at $5,000 and subsequent fines move up to $10,000 per occurrence.
Pricing is per transaction sent to CBP on a monthly basis. Responses received by CBP and sending updates or deletes to CBP are not charged. ACE/ACI Truck eManifest counts as a transaction
Fax / Email Requests
Fax / Email Requests
Fax / Email Requests
$5 / ShipmentFax / Email Requests
$5 / ShipmentFax / Email Requests
$5 / ShipmentFax / Email Requests
$5 / ShipmentWe believe that by adopting modern technologies and combining with the knowledge of Customs & Trade we can deliver the optimal solutions for our customers. CustomsCity will make your eCommerce customs compliance process seamless and cost effective.
Yes! You can sign up for a 30 day FREE trial of Custom City Global Solutions Inc. today! It’s risk-free and there is absolutely no financial obligation. After your free month’s trial, we’ll call to see how you’ve made out.
No, we do not charge a setup fee. You receive free training by phone and free support.
Billing happens at the end of each month. You can choose to receive your invoice by mail or electronically.
No, We only offer billing monthly.
Just give us a call and let us know. We do request 30-days notice.
A truck manifest is an electronic filing that provides CBP with details about the cargo, the truck, the driver, and any equipment involved in a commercial crossing. It must be submitted before a truck arrives at a U.S. land border crossing. All commercial shipments entering the U.S. by truck from Canada or Mexico require a manifest.
For shipments coming from Canada, the manifest must be filed at least one hour before reaching the U.S. border, or 30 minutes if the carrier is FAST-approved. For shipments from Mexico, the filing is required at least 30 minutes prior to arrival. Our software tracks these timelines automatically and notifies users to avoid late filings.
ACE eManifest is CBP’s electronic platform used to receive advance cargo information for truck shipments. Carriers and authorized agents submit manifest data through ACE so CBP can review and assess the shipment before the truck arrives at the border.
A truck manifest includes the carrier’s SCAC code, trip number, driver details (including FAST number if applicable), truck and trailer numbers, shipper and consignee information, cargo description, weight, piece count, and seal numbers when required.
Truck manifests can be filed by licensed customs brokers, carriers that have their own SCAC code, or authorized service providers. Anyone filing must be properly approved and have valid credentials to submit data through ACE.
A SCAC (Standard Carrier Alpha Code) is a unique 2–4 character code that identifies the carrier responsible for the shipment. CBP requires it for all ACE manifest filings. Our system checks SCAC codes in advance to reduce the risk of rejections.
A trip number is a unique reference assigned to each truck crossing. It combines the carrier’s SCAC with a sequential number and is used to tie all shipments on that truck together throughout the border crossing process.
If a manifest is rejected, the truck cannot cross until the issue is corrected. Rejections are commonly caused by missing information, invalid codes, or formatting problems. Our software provides immediate feedback with clear error details so corrections can be made quickly.
Yes. The platform supports all FAST requirements, validates FAST driver and carrier numbers, applies the reduced advance filing window, and helps identify FAST-eligible shipments so carriers can take full advantage of the program.
Absolutely. The system supports all U.S.–Canada and U.S.–Mexico crossings, accounts for port-specific rules, manages multiple SCAC codes, and is built to handle high volumes of daily crossings.
PAPS is Canada’s pre-arrival processing system for U.S.-bound shipments. Our software supports both U.S. ACE and Canadian ACI/PAPS filings, allowing carriers to manage cross-border traffic in both directions from one system.
Yes. Drivers can use our mobile app or portal to view trip details, trip numbers, crossing status, required documents, and receive alerts about holds or inspections.
Manifests can be updated before arrival at the border. The platform allows fast edits for cargo, driver, or equipment changes and automatically resubmits the updated information to CBP.
Yes. We integrate CBP border wait time data and display real-time conditions by port, helping dispatchers make better routing decisions and set alerts when delays increase.
Reports include crossing history, filing compliance, rejection trends.
Truck manifest requirements vary by carrier, port, and shipment type. A demo or trial lets you test the filing process, validation rules, and submission timing using real data from your operations.
[Book a demo or start a free trial to see how it works.]
