Amendment No. 648 to the Constitution of Alabama of 1901, is amended to read as follows:
"Amendment No. 648.
"No elected Mobile County official, including the sheriff, may assume a supernumerary office after the effective date of this amendment. Any person who, on the effective date of this amendment, is entitled to participate in a supernumerary program may continue to participate in that supernumerary program, which shall include the assumption of a supernumerary office according to the terms and conditions of the law which established that supernumerary program. Any elected Mobile County official, including the sheriff, may participate in the Employees' Retirement System of Alabama upon the same terms and conditions as may be specified by law for any other employee in the same retirement system. An elected Mobile County official holding office at the time of the ratification of this amendment shall be eligible to purchase service credit in the Employees' Retirement System for the time the official has served in the current office; provided, however, the official shall forego the assumption of a supernumerary office. For the purposes of this amendment, the words "elected Mobile County official" shall mean any person elected to a full-time Mobile County office, including the sheriff, and shall include any person appointed to serve the remaining term of an elected county official, but shall not include a judge, district attorney, legislator, constable, school board member, any official elected from a judicial circuit, or any official who is allowed by law to participate in any other retirement system."