our society know the unfamiliar concept of light pollution, and try to inform people about this continually to improve the light environment. In 2009, a public hearing in the National Assembly was held for an establishment of the Light Pollution Control Act, and it became the topic of the year. The Seoul Metropolitan Government highlighted the Light Pollution Control Act in 2009, and the law was proclaimed for the first time in Korea in 2011 with the social recognition. The Environment Ministry established the Light Pollution Control Act in 2012, and the law took effect in 2013. Now, all provincial governments and the nation are trying to manage the light pollution by the law.