Upon the filing of an application for the approval of the commission to an action described in § 49-34A-35, the commission shall investigate the application, with or without public hearing, and in case of a public hearing, upon such notice as the commission may require. The commission shall act on the application within one hundred eighty days and shall approve the proposed action unless the commission finds that there is a likelihood of significant adverse impacts to customers in this state.
SDCL 49-34A-36