Does California have a ban on plastic bags? The goals of Senate Bill 270, the so-called plastic bag ban, spoke to the “three Rs” of waste reduction: Reduce the number of plastic bags Californians use, reuse the ones they receive, and recycle them once their useful life has ceased (the bags, not the Californians). The thin plastic bags that used to line every bathroom trash can and litter box in California were and are made of low-density polyethylene, or LDPE. More than 30 billion of those single-use plastic carryout bags used to be distributed across California every year. … Though plastic bags represent a fraction of plastics produced, they are a unique source of blight, according to Mark Murray, the executive director of environmental group Californians Against Waste. They blow into tree branches, clog sewer drains, wrinkle jellyfish-like in our oceans and tumble across our roads.