Super Elite with a Core credit card.

If only there were a tool that highlighted this ;)

Companion passenger had "ACDI" written under remarks on a recent boarding pass. Do you know what it is?

Pure speculation, only because the letters fit, but I wonder if it has something to do with AC's Digital Identification system?

That could be it, Thanks! She had set up their profile on their phone. I did as well, but she checked in for the 2 of us so that could be why she got the remarks and I did not.

I also have ACDI today. I assumed the same.

The dreaded SSSS
 

Just checked in me & the missus for our YYC-YVR-OGG trip tomorrow. I got the dreaded SSSS on my YVR-OGG leg only.
Never had this in 40 yrs of flying. I have Nexus and we are on the same PNR. It says to see agent. I assume this means an agent in YVR
during the YVR TB shuffle? Can the AC agent in YVR do anything or is this automatically a CBSA thing? :(

Yes, in YVR. Nexus members are subject to be SSSSed too.

It doesn't really change anything though. You will need to get a boarding pass at the airport which is annoying, but other than that there's no major differences when you go through security. They might send you through the rotating body scanners rather than just the usual scanners, but that might be it. They will also look more closely at your bag in the x-ray machine but it will go through normally if there's nothing. When talking to a customs officer you may be subject to additional questioning. But again, SSSS does not mean that they will send you to the side room for questioning.

SSSS doesn't mean you will get a pat down and that you will need to open your carry on bag. The note in the WIKI suggesting to wear a bathrobe for easier screening is a slight dramatic (and comedic) exaggeration. In reality you might not see the difference.

I've actually had SSSS be faster. Almost like a concierge service with jumping the queue. You never know.

SSSS is about security, not customs/immigration. There should be no issues at CBP as a result of the SSSS.

What does "remarks" mean on AC digital BP?
 

Saw this under remarks under my FF programme at the bottom of our boarding passes:
SIXF,STPA

SIXF = Sixth Freedom Flight
STPA = Status Pass applied to your PNR

Thanks!

Sixth Freedom Flight? This is a 4 segment itinerary from Europe to the US via YYZ.

Sixth Freedom of The Air - the right or privilege, in respect of scheduled international air services, of transporting, via the home State of the carrier, traffic moving between two other States (also known as a Sixth Freedom Right). The so-called Sixth Freedom of the Air, unlike the first five freedoms, is not incorporated as such into any widely recognized air service agreements such as the "Five Freedoms Agreement".

https://www.icao.int/pages/freedomsair.aspx

A Sixth Freedom itinerary looks like: Country 1 -> Country 2 (where the airline is based) -> Country 3.

EMC?
 

On my app based boarding pass is the following under Frequent Flyer: EMC

Anyone know what it means? Perhaps: Elite May Complain. Extraordinary Magnificent Customer. Extra Meat & Cheese. Every Mile Counts