California’s Rigid Plastic Packaging Container (RPPC) law was enacted in 1991 as part of an effort to reduce the amount of plastic waste disposed in California landfills and to increase the use of recycled postconsumer plastic. The law mandates that product manufacturers that sell products held in RPPCs meet one of the compliance options. Selling includes direct sales as well as products offered for sale in California (this includes retail sales, and remote sales through distributors, wholesalers, and the Internet).
Find more information on this California legislation here.