PARS & PAPS: Truck Clearance at the Canada–US BorderPARS与PAPS：加美边境的卡车清关
Last reviewed: June 2026 · 5 minute read最后审核：2026年6月 · 约5分钟阅读
When a truck crosses the Canada–US border, the goal is for customs to have reviewed the shipment before the driver reaches the booth. Two barcode systems make that happen: PARS northbound into Canada, PAPS southbound into the US. Same idea, opposite directions, different agencies.卡车跨越加美边境时，目标是司机到达关口之前海关已审核完货物。两个条码系统实现这一点：北向进加拿大用PARS，南向进美国用PAPS。理念相同，方向相反，机构不同。
Northbound into Canada: PARS北向进加拿大：PARS
PARS (Pre-Arrival Review System) is a CBSA process. The carrier assigns a PARS barcode to the shipment and sends the paperwork to the Canadian customs broker. The broker files the entry referencing that barcode; CBSA reviews it pre-arrival. When the driver presents the barcode at the border, the system already knows the answer — most trucks are released in minutes.PARS（预到达审查系统）是CBSA的流程。承运人为货物分配PARS条码并将文件发给加拿大报关行。报关行凭该条码申报；CBSA在抵达前审核。司机在边境出示条码时，系统已有结果——大多数卡车几分钟内放行。
Step步骤
Who谁
What happens做什么
1
Carrier承运人
Assigns PARS number, sends invoice package to the Canadian broker分配PARS号，将发票文件发给加拿大报关行
2
Broker (us)报关行（我们）
Files the customs entry against the PARS number before the truck arrives在卡车到达前凭PARS号申报
3
Carrier承运人
Transmits its ACI eManifest (separate obligation — both must be on file)传输其ACI eManifest（独立义务——两者都须在档）
4
Driver司机
Presents the barcode at the booth; CBSA releases or refers for exam在关口出示条码；CBSA放行或转查验
When PARS isn't set up in time, the truck either waits at the border while paperwork catches up, or moves in bond to an inland sufferance warehouse for clearance there — both cost time and money.PARS未及时办妥时，卡车要么在边境等文件，要么保税转运到内陆临时仓库清关——两者都费时费钱。
Southbound into the US: PAPS南向进美国：PAPS
PAPS (Pre-Arrival Processing System) is the US CBP mirror image: the carrier assigns a PAPS barcode, the paperwork goes to a US customs broker who files the US entry, and the carrier transmits an ACE eManifest to CBP. As your Canadian forwarder we coordinate the truck, the documents, and the timing with your US broker — we don't file US entries ourselves.PAPS（预到达处理系统）是美国CBP的镜像流程：承运人分配PAPS条码，文件交给美国报关行申报美国进口，承运人向CBP传输ACE eManifest。作为您的加拿大货代，我们与您的美国报关行协调卡车、文件和时间——我们不直接申报美国进口。
What makes truck clearance go wrong卡车清关出问题的原因
Invoice package sent to the wrong broker, or late — the #1 cause of border waits发票文件发错报关行或发晚了——边境等待的头号原因
PARS entry filed but carrier eManifest missing (or vice versa) — both systems must agreePARS已申报但承运人eManifest缺失（或相反）——两个系统必须一致
Commodity needing a permit (CFIA, etc.) discovered at the booth instead of at booking需要许可证的商品（CFIA等）在关口才被发现，而不是在订车时
Driver arrives before the entry is on file — dispatch and filing must be synchronized司机比申报先到——调度和申报必须同步
On our cross-border trucking service, the truck and the Canadian customs work sit with one team, so the synchronization problems above simply don't get a chance to happen.在我们的跨境卡车运输服务中，卡车和加方报关由同一团队负责，上述同步问题根本没有机会发生。
Educational overview only — CBSA and CBP processes evolve. Verify current requirements for your shipment or ask our team.仅供学习参考——CBSA和CBP流程会演变。请就您的货物核实现行要求或咨询我们的团队。
FAQ常见问题
Frequently asked questions常见问题
PARS vs PAPS — which one do I need?PARS和PAPS——我需要哪一个？▼
Direction decides it: PARS for freight moving north into Canada (a CBSA process, filed by a Canadian customs broker), PAPS for freight moving south into the US (a CBP process, filed by a US broker). A cross-border round trip uses both, one per leg. The mechanics mirror each other — carrier assigns a barcode, broker files against it, customs reviews before the truck arrives.方向说了算：北上进入加拿大的货物用PARS（CBSA的流程，由加拿大报关行申报），南下进入美国的货物用PAPS（CBP的流程，由美国报关行申报）。跨境往返一趟两者都要用，每个方向各一个。两者机制互为镜像——承运人分配条码，报关行凭条码申报，海关在卡车抵达之前完成审核。
What happens if a truck reaches the Canadian border and PARS isn't on file?如果卡车到了加拿大边境而PARS还没有备案会怎样？▼
The driver either waits at the port of entry while the entry catches up, or the goods move in bond to an inland sufferance warehouse to be cleared there — both burn hours or days and usually money. The root cause is almost always upstream: the invoice package went to the wrong broker or went late. Synchronizing dispatch with the broker's filing is the whole game.司机要么在入境口岸等报关单补上，要么货物以保税方式转到内陆的海关监管仓库再行清关——两种情况都要耗掉数小时甚至数天，通常还要花钱。根本原因几乎总在上游：发票资料发给了错误的报关行，或者发得太晚。让发车调度与报关行的申报节奏保持同步，就是这件事的全部要领。
Is eManifest the same thing as PARS?eManifest和PARS是一回事吗？▼
No — they're two separate filings that must both be on file before the truck arrives. The carrier transmits the ACI eManifest (conveyance and cargo data); the broker files the release request against the PARS barcode. If either is missing or they don't agree, the truck doesn't clear, which is why carrier and broker need to be working from the same paperwork.不是——它们是两项独立的申报，都必须在卡车抵达之前完成备案。承运人传输ACI eManifest（运输工具和货物数据）；报关行则凭PARS条码提交放行申请。任何一项缺失、或两者信息对不上，卡车都无法通关，这也是为什么承运人和报关行必须依据同一套单证来工作。
How long does PARS clearance take at the border?PARS在边境清关需要多长时间？▼
When the entry is filed and CBSA has processed it pre-arrival, most trucks are through the booth in minutes — the review already happened. But CBSA can refer any truck for examination at its discretion, so no one can guarantee a crossing time on any given day. The controllable part is making sure nothing is missing when the driver arrives; the rest is the border being the border.只要报关单已提交且CBSA在抵达前完成了处理，多数卡车几分钟就能通过关口——审核在此之前就已经完成。但CBSA有权随时抽查任何一辆卡车，所以没有人能保证某一天的具体过境时间。可控的部分是确保司机抵达时资料齐全无缺；其余的，边境就是边境。
Who assigns the PARS number?PARS号码由谁分配？▼
The trucking carrier — PARS barcodes come from the carrier's own number range, get stickered onto the invoice package, and tie the physical truck to the broker's entry in CBSA's system. As the importer you'll rarely touch one, but you should care that your supplier's paperwork reaches the carrier and the correct Canadian broker early enough to file before the truck rolls.由卡车承运人分配——PARS条码出自承运人自己的号段，以贴纸形式贴在发票资料上，把这辆卡车与报关行在CBSA系统中的报关单绑定起来。作为进口商，您几乎不会直接接触PARS条码，但您应当关心的是：供应商的单证要足够早地送达承运人和正确的加拿大报关行，以便在卡车出发之前完成申报。
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