"Harvard University's Marriott code 17885 is an academic institutional code. No FlyerTalk thread discusses Harvard verification incidents. University codes at Marriott receive the lowest enforcement treatment — hotel staff view academic institutional rates as similar to government rates in terms of legitimacy. Harvard's Cambridge MA presence means nearby Marriott properties (Marriott Boston Cambridge, Sheraton Commander) are familiar with Harvard employees. No verification incident documented."

"Bank One's Marriott code BOB may still exist in Marriott's GDS system following the 2004 acquisition by JPMorgan Chase. JPMorgan has a separate Marriott code (JPM). Legacy acquired-company codes are practically never verified as the hotel has no way to confirm employer identity for a company that no longer exists independently. Risk for legacy codes is negligible."

"I have been a Platinum for a few years (which implies I frequent Marriott properties on a regular basis) and up until tonight was NEVER asked for any id to justify a corporate rate or discount (I legitimately use a few corporate rates I am entitled to and AAA rates)"