AN ORDINANCE OF THE MAYOR AND CITY COMMISSION OF THE CITY OF MIAMI BEACH, FLORIDA, AMENDING CHAPTER 46 OF THE CITY CODE, ENTITLED "ENVIRONMENT," BY AMENDING ARTICLE IV, ENTITLED "NOISE," BY AMENDING SECTION 46-152, ENTITLED "NOISES; UNNECESSARY AND EXCESSIVE PROHIBITED," BY AMENDING THE HOURS PROHIBITING POWER TOOLS AND LANDSCAPING EQUIPMENT; AND PROVIDING FOR REPEALER, SEVERABILITY, CODIFICATION, AND AN EFFECTIVE DATE.