The delay notice everyone shrugs at until it's their Friday afternoon PARS release
CBSA posted TCC26-0076 Update 1 on April 15 flagging 1-3 hour delays on EDI and eManifest portal acknowledgements due to higher than usual volumes. Most of these notices are forgettable background noise. This one isn't, and here's why: acknowledgements are the handshake that tells your system CBSA received and accepted the transmission. Without that RNS or completeness notice, you're stuck in "Updating" limbo in the portal or waiting on an EDI response that never comes. If you're filing close to a warehouse appointment, a border crossing, or end-of-day cutoff, three hours is the difference between a clean release and a Monday problem.
The timing matters. Mid-April isn't peak season, but it's post-Q1 when importers who deferred shipments in January and February to manage cash flow or wait out CARM bugs start pushing volume. Layer in any CARM Portal hiccups—because there always are—and brokers resubmit. CBSA's infrastructure chokes on resubmissions faster than it does on raw new filings. Every time someone hits refresh in the portal or your EDI system auto-retries a failed transmission, you're adding to the pile.
Where the delay actually lands
The notice says "outbound messages"—RNS, reject messages, completeness notices, acknowledgements. Translation: CBSA got your B3 or your cargo control document, but you don't know if they're processing it, rejecting it, or if it's sitting in a queue. For a standard commercial PARS release on a routine entry, you'll probably be fine. The ACI already cleared the truck, CBSA has the A8A hit internally even if you haven't seen the RNS yet, and the driver rolls.
But if you're dealing with RMD, release prior to payment under your RPP bond, or anything requiring a payment confirmation loop back through CARM, that acknowledgement delay stacks. CARM demands the payment post before final release, and if the system is slow to acknowledge your payment submission, you're waiting. Same issue if you're filing a SIMA release or a provisional duty scenario where CBSA needs to confirm your bond or cash deposit is on file before issuing the green light.
Emanifest portal users filing ACI or rail/marine manifests are hit worse than EDI filers. The portal was never built for speed, and when CBSA's backend is under load, the "Updating" spinner becomes a black hole. If you're a small importer filing your own ACI through the portal instead of using a licensed broker, you're stuck refreshing until the system catches up. No workaround, no retry logic, just waiting.
The real culprit: CARM and volume sensitivity
CBSA's EDI infrastructure handled worse volume spikes pre-CARM without these delays. The difference now is CARM's architecture—every B3, every payment, every bond transaction runs through a new set of validation and acknowledgement loops that weren't there under the legacy ACROSS system. CARM wasn't stress-tested at scale with real-world filing patterns, and we're seeing the cracks.
The CARM Client Portal itself is a bottleneck. Importers who migrated to self-filing their own compliance workflows instead of relying on brokers are discovering that the portal doesn't handle batch operations, doesn't queue intelligently, and doesn't fail gracefully. When CBSA's backend slows, the portal doesn't tell you to retry later—it just hangs. EDI at least fails fast and lets your system retry on a schedule.
This isn't a one-off. CBSA has issued similar delay notices every few weeks since CARM went mandatory in October 2024. The pattern is consistent: volume spikes, acknowledgements lag, and the delays cluster around month-end, quarter-end, or whenever importers push deferred entries through to close their books.
What to do when acknowledgements stall
If you're filing close to a deadline, pad your timeline. A B3 filed at 4pm on a Friday with an expected three-hour release window now risks rolling to Monday if CBSA's acknowledgement is delayed and your broker can't confirm the RNS before COB. That's demurrage, missed delivery windows, and warehouse redelivery fees.
For PARS and highway, the ACI pre-arrival transmission usually buys you enough buffer that a slow acknowledgement won't stop the truck. But if you're waiting on an RMD or a correction to clear, that delay compounds. CBSA won't release on an amended B3 until they acknowledge the amendment, and if that's sitting in a three-hour queue, your cargo sits too.
If you're on RMD or release prior to payment, confirm with your broker that the bond is clean and the payment posted before the truck arrives. If CBSA is slow to acknowledge the payment, the release stalls even if everything else is correct. This is where having a broker who watches the queues and knows when to escalate to the local CBSA release office actually matters.
For rail and marine, the delays are worse because the ACE/ACI window is tighter and CBSA's acknowledgement is required before the line releases the container. A three-hour delay on a rail acknowledgement at Vaughan Intermodal or Lachine means your dray gets bumped to the next day and you're paying for the slot you missed.
The bigger CARM problem
This delay notice is a symptom, not the disease. CARM's inability to handle volume spikes without degrading performance is a structural issue, and CBSA hasn't shown any urgency in fixing it. The agency keeps issuing delay notices as if they're weather reports—unavoidable, temporary, beyond control. But these delays are predictable, preventable, and entirely the result of infrastructure choices CBSA made when building CARM.
If you're managing compliance in-house and relying on the CARM Portal for filing or payment, build in extra time. If you're using a broker, make sure they're monitoring EDI acknowledgements in real time and have a direct line to CBSA release offices when things stall. The brokers who survived CARM are the ones who stopped trusting the system to work on schedule.
If your current setup has you filing last-minute or relying on same-day acknowledgements to meet delivery windows, that's a process that needs rework. CARM doesn't reward tight timelines anymore. Contact us if you want to walk through how we're building buffer into filing schedules without adding cost or delay to your supply chain.
Originally published at https://www.canflow-global.com/en/insights/cbsa-processing-delays-when-1-3-hours-actually-matters/.
