FlyerTalk Forums - View Single Post - "Identity Theft by Marriott" ™
View Single Post
Old May 7, 2014 | 10:48 am
  #33  
sethb
FlyerTalk Evangelist
10 Countries Visited
20 Countries Visited
30 Countries Visited
20 Years on Site
 
Join Date: Jun 2004
Location: MSP
Programs: DL PM, MM, NR; HH Diamond, Bonvoy LT Gold, Hyatt Explorist, IHG Diamond, others
Posts: 12,163
http://pe.usps.gov/text/pub28/28c2_040.htm says that the current regulation is to use either "PMB" or "#".

It isn't enforced, but it's there.
sethb is offline