Three more carriers have advised U.S. agents that they are moving to 100% e-tickets for their operations worldwide.

Caribbean Airlines, which serves three U.S. gateways, said its all-e-ticket policy was effective immediately. Aegean Airlines and Bangkok Airways, with regional services in Europe and Asia, respectively, said they would make the switch as of June 1.

The moves come just as IATA is implementing its mandate that no agency-issued paper tickets will be processed by IATA settlement plans anywhere in the world after June 1. The IATA policy does not directly affect U.S. agents because they settle through ARC, which continues to process paper. However, individual carriers can apply their own e-ticket policy to U.S. agents.

Singapore Airlines and Qatar Airways previously announced they are going to all e-tickets worldwide. The Singapore move was immediate, and Qatar's goes into effect June 1.

Singapore said its all-e-ticket directive applies only to tickets plated on Singapore and that it will accept paper if the tickets were plated on another carrier as long as that carrier accepts paper and ARC processes it.

Meanwhile, Travelport issued a status report on its preparations for IATA's new all-e-ticket environment, saying that the company has seen a 13% reduction in paper issued by its GDSs in the last three weeks.

Travelport said its Interchange service, which facilitates communications between carriers and ground handlers with varying technologies, has enabled 3,360 interline e-ticketing relationships and that it supports 6,273 interline e-ticketing agreements, with more being added daily.

To contact the reporter who wrote this article, send e-mail to Nadine Godwin at ngodwin@travelweekly.com.