So apparently within a 4 day warning window, we plan on switching from paper ZEDs to e-ticket ZEDs.

HKG have told us that one of the new conditions will now be fixed routing - so if the e-ticket says MCOJFK for example, we cannot use it to LGA or EWR, which I find odd.

I assume some of you have had e-ticket ZEDs for a while? Do you have this odd regulation?

"The traditional green tickets for staff travel on interline carriers will gradually be replaced by iET. To comply with the iET provision, interline tickets will only be valid for travel to/from the specific airports indicated on the ticket. For example, for a AMS-JFK ticket, this will only be valid for travel from Amsterdam to New York Kennedy while travel to other airports in New York is prohibited. At the same time, staff will only be required to furnish the specific Airport Code when submitting interline ticket application. Further details will be announced in due course."