Senate Bill 1550 amends Chapter 26 of the Private Acts of 2007 concerning the Maury County Sheriff's Department. Key changes include the requirement for the civil service board to meet at least semiannually, the election of a board member as chairman, and the designation of the County Mayor or their designee as the secretary of the civil service board. Additionally, the bill allows for the creation, combination, alteration, or abolition of positions upon the sheriff's request and with funding from the Maury County legislative body, while ensuring that no classified service position can be abolished without the legislative body's approval.

The bill also revises disciplinary procedures, allowing the sheriff to suspend or demote employees for cause, with a right of appeal to the civil service board. The board is empowered to reverse the sheriff's decisions and reinstate employees with lost wages. Furthermore, all appeals must be filed within ten days of the disciplinary action and heard within thirty days. The act requires a two-thirds vote from the Maury County legislative body for approval and will take effect upon becoming law for the purpose of approval, while other provisions will become effective as specified.