All ordinances as soon as possible after their adoption shall be recorded in a book kept for that purpose and authenticated by the signature of the Mayor and Town Clerk. All ordinances of a general or permanent nature, and those imposing any fine, penalty or forfeiture, shall be published in the Valley Courier. Such ordinances shall not take effect until 30 days after such publication, except for ordinances calling for special elections or necessary for the immediate preservation of the public peace, health and safety and containing the reasons making the same necessary in a separate section. The excepted ordinances shall take effect in five days. The reasons making the ordinance necessary for the immediate preservation of the public peace, health and safety shall be set forth in a separate section.