Gavin Newsom September 23, 2024 7:12 am California bans plastic grocery bags, effective Jan. 2026 Starting January 2026 shoppers will now just be asked if they want a paper bag at checkout. Michelle Valles reports for the NBC4 News at 6 a.m. on Sept. 23, 2024. US & World Videos 0:29 Simi Valley woman stabbed to death in front of her children 1:19 Security guard stabbed on Metrolink train near Acton 1:34 Four year anniversary of Iskander brothers killed in Westlake 2:28 Police presence increased after wave of stabbings in Long Beach 1:17 Line Fire flare-up forces new evacuation in San Bernardino County