Yes even in Los Angeles our government can get things right.
From Rodale News:

Cities in at least seven states have successfully passed plastic-bag bans, and the city of Austin, Texas, recently banned all disposable shopping bags. The state of Alaska and Washington, D.C., have both successfully passed per-use plastic bag fees, and according to the website PlasticBagLaws.org, which tracks bag bans across the U.S., use of plastic bags in D.C. has dropped by 50 percent since the city’s fee went into effect in 2010.

Via:

LA plastic bag ban | Another Reason to Love LA: No More Plastic Bags | Rodale News.