"Citigroup's Marriott code CIT is one of the most widely circulated financial sector codes. FlyerTalk users report: "Citigroup code has been posted on public sites for 10+ years — it's one of the most-shared codes in the community." hotelcorporatecodes.com lists CIT with "⚠️ Sometimes" verification. NYC-area full-service Marriotts (near Citigroup HQ in Tribeca/Park Avenue) are more likely to verify. US domestic outside NYC: 5-15% check rate. Europe/Asia: meaningfully higher. Business card typically resolves verification requests."

"I work as a consultant and frequently ask for and use my client's rates (at their insistence, since I will be billing them back). I have been asked for ID maybe one time in 15 since February, when it was announced in this forum that rates would be ID'ed."

"I have a close friend who is a GM at a Marriott property in a fairly large US city (top 25 metro population). Their opinion is basically, "Hey, it's business. I'm not turning away a paying guest if they don't have the right ID." In this person's younger days as a front desk agent, they enjoyed catching people trying to use a corporate rate that the guest was not entitled to. As they became higher up and saw the books, occupancy rates, etc... Corp ID's became far less important than filling rooms."