Although Obama arrival in Bali still tentative and until today no official information yet but airport party said that they are ready to welcoming that US President arrival to Bali. The preparation will according to the special landing procedure as for presidential aircraft, the airport will be close for 30 minutes before and after the landing. It also said that if there is airport closing for Obama arrival, all airport and airlines will receive Notice to Airman (Notam). But until today there is no Notam delivered to any of airlines and airports. Read more about Ngurah Rai airport closing here.