This Act is enacted to promote conservation and utilization of lands and natural resources, and reasonable distribution of population and industrial activities, so as to accelerate economic development, improve living environment, and enhance public welfare.A regional plan referred to in this Act means a regional development plan formulated according to the mutually depended and common-interest relations between geography, population, resources, and economic activities.The competent authority of each level shall establish a committee of regional plan to examine regional plans.