Minn. Stat. § 412.331: ESTABLISHMENT OF PUBLIC UTILITIES COMMISSION.

Any statutory city may by ordinance expressly accepting the provisions of sections 412.331 to 412.391 establish a public utilities commission with the powers and duties set out in those sections. Any water, light, power and building commission now in existence in any statutory city shall hereafter operate as a public utilities commission under sections 412.321 to 412.391.