Section 27.21.220 - Surface effects of underground coal mining(a) The provisions of this chapter apply to the surface effects of underground coal mining. However, the commissioner shall consider the inherent difference between underground mining and surface mining in adopting regulations under this chapter that apply to underground mining.(b) In order to protect the stability of the land, the commissioner shall suspend underground coal mining under municipalities or communities and adjacent to industrial or commercial buildings, major impoundments, or permanent streams, if the commissioner finds imminent danger to inhabitants of the municipalities or communities.