I posted previously about the TSA PreCheck identifier beginning to appear on boarding passes for those who qualify for the program. And having just checked in for my United flights, I can report a slight change from what the TSA announced.
From the TSA blog (bolding mine):
Eligible passengers will see a TSA Pre✓™ indicator on all boarding passes, even when flying out of an airport where TSA Pre✓™ is not available.
But on United, at least, the PreCheck indicator only appears on my boarding passes (both mobile and paper) from departure airports where PreCheck is available.
This isn’t anything earth-shattering for those of us in the know, but it should help eliminate confusion for the infrequent, yet PreCheck-approved fliers.