"DLA (Delta Air Lines) is listed at hotelcorporatecodes.com with verification "⚠️ Sometimes" and 10-15% discount, North America scope. No dedicated FlyerTalk thread on Delta/DLA ID enforcement was found. General pattern for airline employee codes at Marriott: medium risk, primarily because airline employee IDs are easy to request (physical company badge) and airline employees are frequent Marriott guests, making front desk staff more practiced at requesting verification. Properties near major Delta hubs (ATL, JFK, LAX, MSP, DTW) have higher awareness. Select-service and suburban properties: rarely checked. Full-service urban flagship properties: occasional."

"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."

"My employer does not have a corporate rate but when I'm consulting for a company that does, I use theirs. I've only been challenged for identification once. In that one situation I explained the consulting arrangement, and the desk clerk accepted it without a badge or business card (neither of which I had anyway)."