As of July 1, Hawaii became the first state with a ban on most single-use plastic bags.
That's when the island of Oahu's bag ban went into effect, barring grocery stores and retail shops from handing out most plastic bags.
Paper bags, compostable plastic bags and plastic bags more than 2.25 mm thick are still permitted. Federal entities are not required to comply, such as retail Exchanges and Class VI stores on military installations.
Honolulu County passed the restriction three years ago, and it is the last county in Hawaii to enact a ban, making plastic bags illegal across the entire state. The Big Island of Hawaii began its ban in 2013; Kauai approved a ban in 2009 and Maui County got the ban ball rolling in 2008.
Honolulu County covers the city of Honolulu and all of the island of Oahu.
California's state legislature was the first to pass a statewide bag ban in 2014. That law also was supposed to be enacted on July 1, but more than 800,000 residents petitioned for a referendum earlier this year. Voters will decide in November 2016 if the California bag ban will stand or be repealed.