The governing bodies of two (2) or more municipalities may, by ordinance or resolution, authorize the establishment and participation or membership in, and support of, a joint municipal planning commission. The number and qualifications of the members of the planning commission and their terms and method of appointment or removal shall be determined and agreed upon by the governing bodies. Members of a joint municipal planning commission shall serve without salary but may be paid expenses incurred in the performance of their duties. The joint municipal planning commission shall elect a chairperson whose term does not exceed one year and who is eligible for reelection. The commission may create and fill any other offices that it may determine. Every joint municipal planning commission shall adopt rules for the transaction of business and keep a record of its resolutions, transactions, findings, and determinations, which record is a public record. Each participating or member municipality may, from time to time, upon the request of the joint municipal planning commission, assign or detail to the commission any employees of the municipality to make special surveys or studies.