Minn. Stat. § 360.071
Subd. 1. Powers.
All airport zoning regulations adopted under sections 360.011 to 360.076 shall provide for a board of adjustment to have and exercise the following powers:
Subd. 2. Membership.
Subd. 3. Majority control.
The concurring vote of a majority of the members of the board of adjustment shall be sufficient to reverse any order, requirement, decision, or determination of the administrative agency, or to decide in favor of the applicant on any matter upon which it is required to pass under the airport zoning regulations, or to effect any variation in such regulations.
Subd. 4. Rules and procedures.
The board shall adopt rules in accordance with the provisions of the ordinance or resolution by which it was created. Meetings of the board shall be held at the call of the chair and at such other times as the board may determine. The chair, or if absent, the acting chair, may administer oaths and compel the attendance of witnesses. All hearings of the board shall be public. The board shall keep minutes of its proceedings, showing the vote of each member upon each question, or, if absent or failing to vote, indicating such fact, and shall keep records of its examinations and other official actions, all of which shall immediately be filed in the office of the board and shall be a public record. Upon their appointment the members of any board of adjustment shall select a chair to act at the pleasure of the board.