This legislation allows cities and counties to regulate the hours of firework usage within their communities on all but seven days of the year via the adoption of a noise ordinance, so long as said ordinance is general and applicable to all manner of sounds and noises.  Before adopting the ordinance, counties must post notice in the legal organ or on their Web site stating the date, time and place of the meeting and informing the public that the ordinance will affect the use of fireworks.  Statewide use remains allowed from 10:00 a.m to 11:59 p.m. on January 1, December 31, July 3 and July 4, the Saturday and Sunday preceding Memorial Day, Labor Day, and from 12:00 midnight to 1:00 a.m. on January 1 annually. On the downside, for counties not adopting an ordinance, fireworks usage extends from 10:00 a.m. to 12:00 a.m. every day of the year.  Previously, usage was allowed from 10:00 a.m. to 9:00 p.m.