AbstractBy the end of 2012, Indonesia consists of 34 provinces, 422 regencies, and 98 cities. According to the decentralization policy as stipulated by the Act No. 32/2004, infrastructure development becomes inevitable point. Sectors that highly increased are coastal and marine development. Abundant natural resources in the coastal area drives investor to seek potential areas to develop. However,most of local goverment still don’t understand the act of administrative maritime boundary. Undeclared administrative maritime boundary could cause conflict and obstruct the implementation of local government functions. If the border conflict is not resolved soon,local government could lose local revenue (PAD) as well as decrease in civil services.D...