[MENTION=10070524]OccasionallyFlying[/MENTION], since you seem to have some good info on this, maybe you know the answer.

Is the implementation of, and requirements for, ITD OSS different from airport to airport? I've used OSS a bunch at YYZ and YUL, and a couple times at YVR. There, it has always required a BP showing that you're eligible for OSS.

I recently went through it at YYC (WS FCO-YYC-YVR on one ticket), and I don't believe my BP had any indication of OSS. I had to show my incoming and onward BPs, but I think the CBSA guy looked at (not very closely) my inbound BP, and an airport employee looked at, may or may not have scanned, my outbound BP after I had seen CBSA. Unfortunately this was 2 months ago and I forgot to document it at the time, so my memory is a bit hazy, but I remember it all seeming very lax compared to YYZ/YUL/YVR.

In this case, I think it should have pretty clearly been eligible, but there didn't appear to be any checks. I could have been on separate tickets, or maybe even shown one AC BP and one WS one.

I was wondering whether there had been some change to OSS retirements, or whether YYC was just implementing it differently/wrong.

As a general rule the airlines choose what to feature on their boarding passes in order to assist airport staff and airline staff to explain and direct the customers according to their eligible process. That said, not all airlines feature these codings such as “OSS” - but the flight and its connecting customers may still be eligible for this flow. In your case of FCO-YYC arrival, YYC has a high volume of OSS flights and very little Non-OSS. It may seem as though they weren’t scrutinizing your boarding passes when in reality your flight was the only one in the arrivals stream at that time. While the regulations are the same at all airports, how it is managed and verified May differ from one site to the next.

It depends on the risk that airports(and their employees) are willing to take.

Transport Canada requires the airport authority to check that you are in possession of a "document of entitlement" to ensure that you are coming from an OSS-eligible destination, and eligible to use the OSS bypass as such. Air Canada has decided to include indicators such as "ITD OSS" or "ITI OSS" on the top-right of the outbound BP, if you are eligible. Other carriers such as WestJet have not. Different Airport Authorities may decide that AC's OSS indicator is sufficient for OSS eligibility while others may not.

YYZ is the only airport so far that have invested in scanners that only requires an outbound BP to indicate OSS eligibility. Other airports have not and require a physical "document of entitlement" to indicate that you are OSS eligible. Again, the definition of a "document of entitlement" is ambiguous but generally means an inbound BP to indicate that you are arriving from an OSS eligible country. As sending through a non-OSS pax through the OSS bypass is a major security breach(grounding flights, re-screening all pax, etc), many Airport Authority employees/contractors who are responsible for checking your OSS eligibility can have their RAIC suspended if they send even one non-OSS pax through the OSS bypass. Therefore, Airport Authorities + their employees/contractors are especially reluctant in entrusting the OSS indictor on AC outbound BPs.

As a side-note, ITD eligibility is only for passengers who are connecting from AC-AC/WS-WS(+a few other select agreements) and not AC-WS or vice versa. This is because airlines send a list of ITD eligible pax + their checked baggage in advance of arrival for CBSA review. After CBSA formalities at ITD, an Airport Authority employee/contractor will not only verify your OSS-eligibility but also scan your outbound BP to indicate that you(and your checked bags) have been cleared through CBSA and can be loaded onto your next flight.

Been a while since I transferred through YUL (normally end travel there). I see a few posts here saying it does have OSS (coming in from MUC).

Is that available/up and running again? Trying to figure out if I should do duty free shipping of the alcohol variety which I tend to avoid even with the sealed bag thing that EU airports do.

Yes. Had it last week on FRA-YUL-YYC. But if you're coming from MUC, you'll be on LH, and I don't know whether LH-AC is eligible. Maybe [MENTION=10070524]OccasionallyFlying[/MENTION] would know that one.

YYZ Connection
 

Okay, reading through not sure what the answer is...

Flying IAD-YYZ-YHZ next week. Ticket was purchased through United but second leg is operated by Air Canada. Will I be able to connect using OSS, or will I need to clear customs at arrivals and go back through domestic security?

LH and AC have OSS agreements at YUL. No need to pick up bags/re-clear security at YUL.

UA is still holding off on participating in OSS programs due to its atrocious baggage operation failures in Canada. UA cannot commit to delivering ITD bags in a timely matter to CBSA when requested. As such, you will have to clear customs at YYZ, collect any bags and re-clear domestic security even if you have no checked baggage.

TLV-ATH-YUL-YYZ, A3 on first segment and AC on rest
AC BP clearly indicates ITD OSS. Baggage tag indicates through to YYZ.
Only hitch is TLV check-in agent specifically said I'd have to pick up the bag in YUL to clear customs. Am I correct this is a case of agent error (I.e., it will be checked through and I can benefit from OSS) or might the agent be right?

This sounds like agent error. What matters is the fact that you will be arriving in Canada directly from an EU airport (regardless of your initial point of origin) on a carrier that participates in ITD OSS (Air Canada). The initial Aegean segment should be irrelevant. Arriving at YUL on AC flights from the EU, you do not have to pick up your bags, so it's the ATH-YUL flight that matters, not the TLV-ATH.
We've done ITD OSS multiple times on itineraries involving initial segments on airlines which (like Aegean) don't participate in ITD OSS and in fact don't even serve Canada. But what matters is the transatlantic segment on a qualifying carrier, which for us is always AC.

OSS at YUL for International-Domestic Connection
 

I'm flying MEX-YUL-YOW today and had to re-clear security at YUL.

On past international-domestic connections at YUL, I've always been able to skip security, but those were all originating Europe. Is OSS limited to certain departure points?

Yes.
https://canadasairports.ca/advocacy/...nsit-programs/

Thank you!

Yes. Mexico-origin flights are not included as party to be OSS eligible. US and EU/Schengen origin flights are party to OSS eligibility. Also, UK-origin flights.

Just wanted to share my experience as this if the first time I've used this (Service?).

DTW-YYZ-YWG all on AC. YYZ-YWG pass has ITD OSS.

I wasn't sure if I would be able to use nexus while doing this as there seems to be conflicting information, but I can confirm it was no problem.

Normal Immigration goes down the great big circular opening staircase. Right next to that are the large D and F connection signs. They are large, and very hard to miss. They are just to the right of the staircase.

There was an agent checking boarding passes - I'm not sure if they were checking specifically for OSS or not, but they waved me through and then it was down a short hallway to the actuall OSS setup. There is (as of the time of this post) 3 NEXUS machines, clearly marked and labeled, and about 20+ regular machines. After talking briefly to the officer, I was given my printed checkmarked paper back and then immediately handed it to another officer, and then it was another decent walk that puts you right next past domestic security (right next to the elevator to the MLL and the ground floor).

A very seamless process, the only reason I didn't get to the MLL faster is because we parked at the tip of F99, it's a serious haul!

But hope this helps clear things up for people. You most certainly can use both NEXUS and OSS.

Will we see Ottawa signing an agreement with Singapore for OSS? Canada has a mutual OSS agreement with the European Union, which also has a mutual one with Singapore. It would be positive to see a Canada-Singapore agreement in advance of the launch of AC's new non-stops to Changi next year.