"Intel (alt) Marriott code INL is a secondary Intel corporate code alongside the primary IBS code. The same low-enforcement pattern applies: Intel's IBS at 10-15% discount is in the low-pressure verification zone, and a secondary alt code is even less likely to be scrutinized. No INL-specific denial documented. Intel's Hillsboro OR HQ and campus cities (Hillsboro, Chandler AZ, Folsom CA) mean nearby properties handle Intel employees regularly but enforcement rates are low."

"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)"

"FlyerTalk community specifically notes the MMM code as "the go-to code for the Minneapolis/St. Paul area, described as extremely reliable at local Courtyard and Residence Inn properties, with a low risk rating." One user documented using an IBM rate for 14 years at 80-100+ nights annually and "never once being asked for an ID." Another stayed 500+ nights and was never asked. The 3M code is regionally well-known near 3M's Minnesota HQ."