Flying To US? New Security Rules Kick In From Tomorrow

Association of Asia Pacific Airlines Director General Andrew Herdman said having a globally coordinated security approach made more sense than having destination-specific requirements.

"This is not a positive," he said of the US measures at an industry conference in Taipei. "It adds complexity."

US authorities in June also increased security around aircraft and in passenger areas, and other places where travelers can be cleared by US officials before they depart.

A Transportation Security Administration (TSA) spokeswoman declined to discuss the specific changes but said "the United States continues to work with our partners to raise the baseline of global aviation security and keep the entire traveling public safe."

The TSA said in July it was imposing new security rules requiring US domestic airline travelers to remove all electronic items larger than mobile phones such as tablets, e-readers and video game consoles from carry-on baggage for screening.