Originally Posted by CKDGM

By my reading of the letter, yes but only at the preclearance airports in Canada. (The letter says "any of the eight international airports that offer US preclearance" which presumably means the eight Canadian international airports that have it; DUB and SNN also have Global Entry kiosks....)

The phrasing "In order to use the GE kiosks located within the United States, NEXUS members must have a valid registered passport on file" is a bit ambiguous; technically it says you have to have the passport on file but not that you have to use it with the kiosk, but in practice I doubt any airline would let you board with just a NEXUS card. (Porter wanted to see my passport for YTZ-BOS.)