-Do not point or throw fireworks at other people.
"As long as there's no real precipitation and the roads stay clear we should see people come out in full force", said Aaron Taggert, Spencer's general manager.
About 1.5 million people packed the city's foreshore to watch the pyrotechnics light up the sky above the historic bridge and the iconic opera house, the first major celebrations worldwide after New Zealand.
There will be family-friendly activities and entertainment throughout the evening, with fireworks at 9 p.m.
Hale's son, Matthew, said it's not only time well spent but it also helps a good cause.
More San Francisco police officers will be patrolling the streets on New Year's Eve, city officials said at a Friday press conference.
New Year fireworks illuminate the sky over the iconic Opera House and Harbour Bridge
If you are heading into San Francisco for New Year's Eve there's a new way to stay informed.
You can purchase fireworks until 7 p.m. on New Year's Day. You know, fireworks are unsafe, you have to respect them.
Lacy Lakeview Fire Chief and Fire Marshal Patty Faulkner recommends having a water source, such as a garden hose or a bucket of water, nearby. "We're looking to accommodate a lot of guests", owner Paul Kulik said.
"If you want to see fireworks, go to the show along The Embarcadero and leave it to the professionals."
The owner of Louisiana Fireworks, Josh Marietta, said he love fireworks and selling them to his customers, but he also believes that safety comes first. Put them down, then ignite them and walk away.
Every year fireworks are a big boom, but every year make sure you are lighting them in the right place and at the right time.