Nominations for elective offices of the Municipality shall be made only by petition filed with the election authorities not later than the first day of September immediately prior to a regular Municipal election and signed by electors of the Municipality not less in number than two percent (2%) of the number of electors voting at the last general Municipal election with a minimum of twenty-five (25) signatures. The nomination of each candidate shall be made by a separate petition accompanied by the written acceptance of nomination by the candidate.