The State Board of Mediation is responsible for determining appropriate bargaining units of public employees based on their shared interests and for determining majority representative status through secret ballot elections.

Public body
The state of Missouri, or any officer, agency, department, bureau, division, board, or commission of the state, or any political subdivision of the state, including, counties, cities, school districts, and districts created for special purposes.
Public employees
Persons employed by "Public bodies."
Excluded public employees include: police, deputy sheriffs, Missouri State Highway Patrol Officers, members of the Missouri National Guard, and all teachers in Missouri schools, colleges and universities.
Exclusive Bargaining Representative
An organization that has been designated or selected by a majority of the employees in an appropriate unit as their representative for purposes of collective bargaining.
Appropriate unit
A unit of employees at any plant or installation or in a craft or in a function of a public body which establishes a clear and identifiable community of interest among the employees concerned.
The Missouri State Board of Mediation.
The chief administrator of the State Board of Mediation.
The designation by the chairman or the board of an employee organization selected as the majority representative of employees through an election in an appropriate unit.
The board members, employees of the board or any officer so designated by the board to perform the functions and duties of mediation.
Any member, counsel, election officer, chairman or any other individual or employee specifically designated as an officer of the board to act on the board’s behalf. The board may delegate to such officer all of the powers conferred upon the board in connection with the discharge of the duty(ies) so delegated
Any person, employee, group of employees, organization or public employer filing a petition, request or application under these rules; any person, organization or public employer named as a party in a complaint, request, application or petition filed under these rules; any incumbent majority representative; or any other person, organization or public employer whose intervention in a proceeding has been permitted or directed by the board, but nothing in this rule shall be construed to prevent the board or any designated officer, from limiting any party’s participation in the proceedings to the extent of his/her interest
Showing of interest
A designated percentage of employees in an allegedly appropriate bargaining unit or a bargaining unit determined to be appropriate, who are members of a labor organization or have designated it as their exclusive bargaining representative or have signed a petition requesting an election for certification or decertification of employee representatives
Voluntary recognition
An employer has recognized an employee organization as the majority representative of an appropriate unit of its employees. The granting of such recognition is at the discretion of the employer and has been granted outside the authority of the State Board of Mediation and the certification process.