Originally Posted by
rubesl
Applied for NEXUS for me & Mrs. because it's cheaper than GE ($50) and it also gets you GE (I called CBP and made sure before I applied). Two days after I completed and paid for the two NEXUS applications a $100 credit showed up on my Platinum account. Way to go AMEX!
Correct. Works the same way with SENTRI.
All three of those are interchangeable with no further fees nor a new application procedure.