What ACE eManifest do I file for Ontario-to-Michigan freight?

For US-bound freight on the Ontario-Michigan lane, file an ACE eManifest with CBP at least one hour before the truck arrives at the border. The same filing applies regardless of which crossing on this lane you use — but the port code on the manifest must match the actual crossing.

Which border crossings serve the Ontario-Michigan corridor?

The Ontario-Michigan corridor is primarily served by Ambassador Bridge, Blue Water Bridge. Each has its own wait-time profile — check the live border wait times before choosing which crossing to route over.

How far in advance must I file ACE for this lane?

CBP requires ACE Truck eManifests at least one hour before the commercial truck arrives at the land border. FAST-enrolled carriers and drivers may use FAST-dedicated lanes at participating crossings, which often clear materially faster. BorderPro's ETA countdown alerts dispatchers when a manifest hasn't been filed with sufficient lead time.

Where do customs brokers serving Ontario-Michigan freight cluster?

Customs brokers serving the Ontario-Michigan lane cluster in Windsor, ON, Detroit, MI, Port Huron, MI. BorderPro connects to broker RNS feeds so your PARS status and ACE filings live in the same dashboard regardless of which broker you use.

ACE eManifest · US-bound Lane

Ontario to Michigan

ACE eManifest filing for the Ontario-Michigan freight corridor. Lane-specific compliance, crossing selection, and wait-time guidance.

Start Free Live Wait Times

The Ontario-Michigan freight lane

The Ontario-to-Michigan lane is the single busiest commercial truck corridor in North America, moving roughly a quarter of all US-Canada merchandise trade. Freight is dominated by automotive JIT — engine parts, stampings, seats, and finished vehicles shuttling between southern Ontario plants and Detroit metro assembly lines in Sterling Heights, Warren, Dearborn, and Flat Rock. Because assembly schedules run to the hour, a 30-minute border delay can shut a line. Most US-bound ACE traffic uses the Ambassador Bridge; heavier hazmat and oversized loads cross at the Blue Water Bridge.

Primary crossings on this lane

Typical commodities

Automotive parts
Finished vehicles
Jit manufacturing
Tool and die
Plastics

Filing ACE on this lane

ACE eManifest must be on file at least one hour before the truck arrives at the inspection booth. For this lane, FAST-enrolled drivers and C-TPAT-certified shippers clear materially faster — FAST lanes exist at both Ambassador and Blue Water. Shipment type codes for automotive parts are heavily scrutinised; double-check HS classification before filing.

Wait pattern

US-bound peaks weekdays 6-10am and 2-6pm ET, driven by Detroit plant shift changes. Sunday night freight is heavy as plants restart. Friday afternoons are the worst-case scenario — truck traffic combines with passenger cars returning from Windsor.

Broker hubs

Customs brokers serving the Ontario-Michigan lane cluster in Windsor, ON, Detroit, MI, Port Huron, MI. BorderPro connects directly to broker RNS feeds so your PARS status and ACE filings live in the same dashboard.