An emergency ordinance shall:
(a) Be enacted only to meet a public emergency affecting public peace, health, safety or welfare of persons or property;
(b) Be introduced in the form and manner required for ordinances generally, except that it shall contain, after the enacting clause, a declaration stating that an emergency exists and describing it in clear and specific terms;
(c) Be adopted at the meeting at which it is introduced by an affirmative vote of two-thirds (2/3) of council membership present. An emergency ordinance may be given effect earlier than twenty (20) days after enactment if the requirements for publication are met by posting copies thereof in three (3) public places in the city. The clerk shall immediately after such posting enter in the ordinance book under the record of the ordinance a certificate stating the time and place of such publication by posting. Any emergency ordinance shall also be published in accordance with Section 8.9, but not as a requirement for the effectiveness thereof;
(d) Not levy taxes; grant, renew or extend a franchise; regulate the rate charged by any public utility for its services; make or amend a grant; or other special privilege.