Almost 80 municipal governments around the country have already adopted restrictions over the past few years, while some beach and lakeside communities have outright bans.
Chileans use more than 3.4 million plastic bags a year, according to the environment ministry, and most get dumped in landfills or make their way into the ocean.
The measure represents Chile’s latest effort to be a model on environmental issues. Congress passed legislation in 2016 to reduce waste and promote recycling, and Chile has overhauled its electricity sector in recent years to rely more heavily on renewable energy sources.
“It is a positive step,” Flavia Liberona, director of the environmental group Terram, said of the ban. “It opens the door to move forward and discuss other related problems, like the use of plastic food packaging and recycling.”