https://www.siliconvalley.com/2024/09/23/newsom-signs-law-banning-all-plastic-shopping-bags-at-grocery-stores/

SACRAMENTO — “Paper or plastic” will no longer be a choice at grocery store checkout lines in California under a new law signed Sunday by Gov. Gavin Newsom that bans all plastic shopping bags.

California had already banned thin plastic shopping bags at supermarkets and other stores, but shoppers could purchase bags made with a thicker plastic that purportedly made them reusable and recyclable.