The city ordinance went into effect Monday, requiring restaurants with 26 employees or more to only provide plastic straws if a patron asks for one.
By Oct. 1, all city restaurants, regardless of size, will be required to comply.
The new straw law means the city of L.A. is one step closer to completely banning plastic straws.
L.A. City Councilmember Mitch O'Farrell says the phase out of plastic straws gives the restaurant industry time to produce biodegradable, environmentally friendly alternatives, like paper straws used at the Original Pantry Cafe in downtown L.A.
"Small changes all add up to really big impact. So I think it's a great thing," said Original Pantry Cafe customer Christine Truett.
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Americans throw away 500 million plastic straws every year, according to the National Park Service.
"You just think about landfills and you think about every time a straw is made it's occupying more space in the world. If it can break down and just be back into nature, it'll just be better overall for everything," said customer Jonathan Zarrabi.