Road signs in Indonesia the rules are not being implemented properly. Indonesian road signs use Indonesian, the official and the national language of Indonesia. However, English is also used for important public places such as tourist attractions and airports. Bilingual signs can be found in tourist areas such as Bali. Indonesia signed the Vienna Convention on Road Signs and Signals but have yet to ratify the Convention. Warning signs warn of possible dangers or unusual conditions ahead and alert motorists on the hazards to expect. Warning signs in Indonesia used to closely follow The American MUTCD and Japanese diamond-shaped with yellow background and black-and-yellow
Christianity in Indonesia East Nusa Tenggara, and North Sulawesi. Among Indonesian provinces in 2010, Sumatra's northern-most province, Aceh, reported the fifth-smallest number of Christians (53,624) or 0.23% of Christians within Indonesia. Aceh had the second-smallest percentage (among religions reported in the province) of Christians (1.19%), effectively tying with Gorontalo for the smallest percentage of Catholics (0.07%) and including the third-smallest percentage of Protestants (1.12%). Aceh operates Sharia law and all regencies are 99%+ Muslim, with the exception of Aceh Singkil (11.2% Christian) and Southeast Aceh (18.7% Christian). Both areas' Christian populations consist of ethnic groups whose homelands lie outside Aceh—in Aceh Singkil, Christians