Minn. Stat. § 375.77: LAWS NOT AFFECTED.

Sections 375.72 to 375.76 are not intended to modify, amend, or repeal any law relating to counties in regard to bidding or any law existing at the time of passage of sections 375.72 to 375.76 which authorize the establishment or creation of a county purchasing agent or department, or a combined city and county joint purchasing arrangement.