497

Any such local law or ordinance may be amended, from time to time, or repealed by the common council or other local legislative body of the municipality which enacted it and such amendment or repeal, as the case may be, may be made effective and operative not earlier than thirty days following the date of enactment of the local law or ordinance effecting such amendment or repeal, as the case may be; and the approval of a majority of the electors of such municipality shall not be a condition prerequisite to the taking effect of such local law or ordinance.