Originally Posted by
RWPrincess
They are allowed to board with the member no questions asked. I would imagine EMS is the same too.
I have Global Entry and when I travel with someone who does not have it, they still get PreCheck with me.
EMS is the same but occasionally it won't be on other people's boarding cards. Whether or not it's a glitch is debatable, but agents have in the past refused to assist in those cases, which means it's into the regular line for your friends / family