ACE eManifest · CBP Port 3801
File US-bound eManifests for Windsor, ON → Detroit, MI in under 60 seconds. Preflight validation, live wait-time data, and automated trip numbers.
The Ambassador Bridge is North America's single busiest commercial crossing, carrying roughly one-quarter of all merchandise trade between Canada and the United States. Truck traffic here is dominated by automotive parts, finished vehicles, and just-in-time manufacturing freight moving between southern Ontario and the Detroit metro assembly plants. Because so much of the freight is scheduled to the hour, ACE and ACI timing are less forgiving here than at almost any other crossing on the northern border.
File ACE eManifest at least one hour before arrival at the Ambassador Bridge US-bound inspection booths. The bridge uses CBP port code 3801. During the 6-10am and 2-6pm ET peak windows, a late filing typically costs 30-60 minutes on top of organic wait — longer if the Gordie Howe Bridge is also backing up truck traffic onto I-75.
Heaviest US-bound waits land on weekday mornings 6-10am as Detroit assembly shifts start. Canada-bound peaks 3-7pm. Sunday evenings run lighter. The bridge does not close for weather unless winds exceed 60 mph.
The Ambassador Bridge is privately owned — the only privately-owned international bridge on the northern border — which is why tolls and commercial lane configurations can change without the multi-agency review that governs other crossings.
Ambassador Bridge is served by brokers concentrated in Windsor, Tecumseh, LaSalle, Detroit, Dearborn, Livonia. BorderPro connects directly to broker RNS feeds so your PARS/PAPS status updates arrive in the same dashboard as your ACE filings.
CBP port code 3801 (Detroit). Use this exact value in your ACE eManifest port-of-arrival field.
Yes — ACE eManifests can be updated or cancelled before arrival. BorderPro lets you re-port a filing to Blue Water Bridge (port 3802) without a new submission, as long as the change is made before the driver reaches either plaza.
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