Originally Posted by Chattersking

I assumed Nexus card holders are eligible for Tsa Pre check.


However on their website the information is quite confusing. http://www.tsa.gov/tsa-precheck/apply

• If I present my CBP trusted traveler card (Global Entry, NEXUS or SENTRI), will TSA allow me to utilize the TSA Pre✓® lane?
  
• []No. This card is used by CBP at land border crossings and is not accepted by TSA for expedited screening access. [/B]The CBP PASSID is a nine-digit number that usually begins with 98 and serves as your known traveler number. Your individual reservation — passenger name record — must include your KTN. Travelers can check with the airlines to verify their KTN is listed in the passenger name record. Travelers who have been cleared for TSA Pre✓® will have information embedded in the barcode of their boarding pass and will have an indicator printed directly on the boarding pass.
  
• What is a CBP PASSID and known traveler number?
• The PASSID is assigned to you when you enroll in Global Entry, Nexus or Sentry. This nine-digit number usually begins with 98, serves as your KTN and can be found on the back of your card. You can also verify this information by logging into GOES. Choose the “Change Profile” option to verify first/middle/last name/date of birth and PASSID, which is your KTN. Your trusted traveler card will not grant you access to TSA Pre✓®; TSA Pre✓® must be printed on your boarding pass in order to receive expedited screening benefits. Members of the TSA Pre✓® Application Program have a KTN that starts with the letters TT. Please provide this number when booking a reservation on one of the participating airlines. [B]You may obtain a KTN if you are enrolled in one of the four trusted traveler programs.

So how do I obtain a KTN if I have a Nexus card?