"Target's IHG code (888400) is a major retail chain code. IHG enforcement is tier-based: InterContinental and Kimpton properties are more likely to verify; Holiday Inn Express essentially never checks. Target's code circulates widely online, which is specifically called out in FlyerTalk's IHG thread: "A moderator explicitly cautioned — unless you're employed by one of those companies, I would avoid using these codes at all. They do often ask for ID." Target employees near Minneapolis HQ and major distribution centers may be verified at full-service IHG properties."

"FedEx's main IHG code (109207) is documented in the FlyerTalk IHG Rate Codes master thread. The IHG enforcement pattern for FedEx: "Airport Holiday Inns rarely check credentials; InterContinentals in major cities almost always do." FedEx monitors hotel usage volume with IHG — anomalous usage in one business unit could trigger company-side audit. One FlyerTalk user documented IHG refusing to honor a rate without ID and offering to cancel after the cancellation deadline. FedEx employee IDs are physical company badges recognizable to hotel staff."

"Overall, I have been asked for proof of corporate id or business card especially when using negotiated rates at individual properties. Now at most of these places our company has deeply discounted rates that can be 50% off the BRG and may have last room guarantee too. For example, I have been asked at the Hilton KL, IC Strings Tokyo, IC Jakarta, IC Frankfurt, IC GS Hong Kong, CP Zurich to name just a few. From friends experiences the GH Singapore is also known to ask for proof if some of the quite low negotiated rates are used. Now usually, I was asked once and then it was done and only twice at the Hilton KL, but not all the time on every stay."