"Park Hyatt properties check most frequently. Front desk staff are trained to verify corporate rates. You should be prepared to show a company ID or business card. Hyatt Place and Hyatt House rarely verify."

"I am at a site for where I work where we have "casual" (PT on call employees who reside all over the country) who never have stepped foot in any of our offices and are called to assignments that are 100% travel; what I didn't realize until today was that we do not issue them ANY form of identication (badge, card, biz card etc) yet they are eligible for all of our corporate rates; how they prove it I'm not sure but this just goes to show that not all employees have ID"

"I have never been asked for ID and I have used a corporate code to make reservations on the Hyatt website at several Hyatts in Asia (Taiwan, HK, China) and USA with no problems."