| 5. Period of ordinance. Ordinances or amendments to an |
ordinance adopted under this section shall remain in effect for |
no more than 3 years until repealed by the municipality or |
| rescinded by the commissioner. A certified copy of the ordinance |
shall or amendment to the ordinance must be filed with the |
| commissioner within 20 days of its adoption. If a copy of the |
| ordinance or an amendment to the ordinance is not filed within 20 |
| days, the ordinance reverts to the ordinance previously in effect |
| until the new ordinance or amendment is filed. |