Means not advised to go to the destination; an

China Travel Tourism administrative departments shall set up tourism safety information early warning system to assess the safety situation of tourism destinations. There will be four colors representing different levels of early warnings. A red warning means "not advised to go to the destination"; an orange warning means "advised to reconsider the necessity of going China Travel to China Travel the destination and avoiding unnecessary travel"; a yellow warning means "advised that there is deep concern for factors that have occurred or are likely to occur to impact travel safety in tourism destinations"; and a blue warning means "advised to consider factors that have occurred or are likely to occur to impact travel safety in tourism destinations".

HNA Group is the largest privately owned air transport company in China and includes six airlines with a combined fleet of 100 aircraft and 500 departures a day. Hainan Airlines is the largest carrier within the HNA Group.

As part of the engagement, Perot Systems will evaluate HNA Group's current capabilities in areas such as e-ticketing, reservations, departure control, and airline reservations systems connectivity. Once this is complete, Perot Systems will assist HNA Group in deploying technology solutions with the aim of becoming a leader in providing end-to-end travel services in China.