Advance Commercial Information (ACI) — delivered through the CBSA's eManifest systems — is electronic cargo data that must reach the CBSA before goods arrive in Canada. If the data is late or wrong, cargo doesn't move, and penalties land on whoever was responsible for transmitting. Here's who files what, and when.预先商业信息（ACI）——通过CBSA的eManifest系统传输——是货物抵达加拿大之前必须到达CBSA的电子货物数据。数据迟报或错误，货物就不能移动，罚款落在负责传输的一方头上。以下说明谁报什么、何时报。
| Mode方式 | Who files申报方 | General deadline一般时限 |
|---|---|---|
| Marine海运 | Ocean carrier (cargo & conveyance data)海运承运人（货物与运输工具数据） | 24 hours before loading at the foreign port境外港口装船前24小时 |
| Air空运 | Air carrier航空承运人 | 4 hours before arrival (or at departure on short routes)抵达前4小时（短航线为起飞时） |
| Highway公路 | Trucking carrier卡车承运人 | 1 hour before reaching the border抵达边境前1小时 |
| Rail铁路 | Rail carrier铁路承运人 | 2 hours before arrival at the border抵达边境前2小时 |
| Consolidated freight拼箱货物 | Freight forwarder (house bill data)货运代理（分提单数据） | Same pre-arrival timeframes as the mode与运输方式相同的抵达前时限 |
Where importers fit: you typically don't transmit ACI yourself — but your release depends on the carrier's and forwarder's data being on file and matching your customs entry. Mismatched house bills are a classic cause of containers sitting released-but-unmovable.进口商的角色：您通常不亲自传输ACI——但您的放行取决于承运人和货代的数据已在档且与您的报关单匹配。分提单不匹配是集装箱"已放行却动不了"的经典原因。
Carrier (SCAC) codes appear at the front of master bill numbers and throughout eManifest data. The majors on the China–Canada trade:承运人（SCAC）代码出现在主提单号开头和eManifest数据中。中加航线主要承运人：
| Carrier承运人 | SCAC / B/L prefixSCAC / 提单前缀 |
|---|---|
| MSC — Mediterranean Shipping | MEDU |
| Maersk | MAEU |
| CMA CGM | CMDU |
| COSCO Shipping Lines | COSU |
| Evergreen Marine | EGLV |
| ONE — Ocean Network Express | ONEY |
| OOCL | OOLU |
| SM Line | SMLM |
ACI violations are enforced through AMPS administrative penalties — late or missing pre-arrival data can draw penalties in the thousands of dollars per occurrence, and repeat contraventions escalate. The operational cost is usually worse: held cargo, missed rail cutoffs, and demurrage stacking while data gets corrected.ACI违规通过AMPS行政处罚执行——抵达前数据迟报或缺失每次可被处以数千加元罚款，重复违规会升级。运营成本通常更糟：货物被扣、错过铁路截单时间，数据更正期间滞期费不断累积。
Educational overview only — transmission rules and timeframes are set by CBSA and change; carriers may apply earlier internal cutoffs. Verify current requirements for your shipment or ask our team.仅供学习参考——传输规则和时限由CBSA制定且会变化；承运人可能有更早的内部截止时间。请就您的货物核实现行要求或咨询我们的团队。