Since 1980s, government reformation has become a trend all around the world. The role that government plays faced harsh challenges so that changes are of a must. The relationship between central and local governments engaged in adjustment as a consequence. Many countries have realized the importance of decentralization of government powers. Since the declaration of the ending of martial law, Taiwan has proceeded a series of social and political liberation. Economic society and citizen society are becoming more and more vigorous as well. The whole society has been accumulating energy and ready to take off. After the legalization of local autonomy and the awakening of the people on their civil rights, democracy has already been a magic word. People enthusiastically participate in the public affairs they are interested in. Intergovernmental relationship (IGR), on the other hand, is an issue getting more complicated and problematic. The development of local autonomy is shifting from old, conventional, conservative, parochial, authoritarian localism to a new localism, which is open, interdependent, negotiating and regional cooperative. In order to respond to the request of people for more personal services, many local administrations usually deal with businesses that involve more than one region such as refuse disposal, river management, reservoir management, environment protection, mass transportation and health care. All these issues are highly interdependent and need cross-regional cooperation. Local governments should seek solution through the aspect of regional cooperation. Therefore, the key to the increase of government efficiency lies on the implementation of cross-regional cooperation mechanism among local governments. As a matter of fact, many solution strategies aiming cross-regional cooperation were given by many a local government in the world already. This essay studied the parallel interactive cooperation between local governments and provided a cross-regional cooperation solution. The case study included two examples, Taipei-Keelung and Kaohsiung City-County-Pingtong, to compare and analyze their refuse disposal models. I hope this study could help to develop horizontal integration and cross-regional cooperation among local governments and to construct ideal interaction models among vicinity regions so as to build a mechanism for wholesome metropolitan development. As part of the foundation, this study may be referred to as a suggestion for effective solution on cross-regional issues.

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