Minn. Stat. § 326.031: SPECIFICATIONS FOR PUBLIC FACILITIES, USE OF BRAND NAMES.

Any engineer, architect, certified interior designer, or other person preparing specifications with respect to a contract for the construction of any facility for the state, or any agency or department thereof, or for any county, city, town, or school district, shall at the time of submitting such specifications to the governing body of the organization requesting the specifications, submit to such body, in writing, a list showing each item in the specifications which has been specified by brand name, unless such specifications allow for the consideration of an equal.