The Biden administration is reportedly now in favor of a United Nations-led effort to reduce global plastic production, according to multiple reports.

U.S. officials now reportedly support a developing U.N. treaty that would aim to impose a cap on plastic production worldwide, a shift from its earlier position of allowing countries to determine production levels for themselves, sources familiar with the matter told Reuters and Politico. Biden administration officials have also reportedly signaled that they will support measures to target particular types of plastics and establish a list of specific chemicals to address with new, uniform obligations.

Senior White House Council on Environmental Quality (CEQ) official Jonathan Black reportedly informed industry stakeholders and environmental activists of the shift in position during two private meetings that were closed to the media, according to Politico. Reuters first reported on the administration’s pivot on the UN plastic treaty on Wednesday, and CEQ spokesperson Justin Weiss confirmed the outlet’s reporting in subsequent correspondence with Politico.

It is currently unclear exactly how such a treaty would actually be enforced if adopted.

Prior to the administration’s position shift, U.S. officials had endorsed a more “flexible” approach rather than a global cap on plastic production and had not offered much indication as to whether or not the Biden administration supported an effort to crack down on specific chemicals, according to Politico. Negotiations on the U.N. treaty are still ongoing and are expected to conclude at a November conference in Busan, South Korea; that meeting will take place after Nov. 5’s U.S. presidential election, according to Reuters.

The Biden administration’s reported change of position on the matter now aligns the U.S. with countries like South Korea, the European Union’s member states, Canada and Peru, according to Reuters. Nations that are major petrochemical producers, like China and Saudi Arabia, have attempted to block further discussions about a possible cap on global plastic production and instead want countries to focus on less divisive initiatives, such as improving waste management.

“As the White House caves to the wishes of extreme NGO groups, it does a disservice towards our mutual ambition for a cleaner, lower carbon future where used plastic doesn’t become pollution in the first place,” Chris Jahn, president and CEO of the American Chemistry Council, said of the pivot in a Wednesday statement. “If the Biden-Harris Administration wants to meet its sustainable development and climate change goals, the world will need to rely on plastic more, not less. Plastics enable solar and wind energy, are critical to modern healthcare, deliver clean drinking water, reduce home, building and transportation energy needs, and help prevent food wastage.”

Meanwhile, Greenpeace — a major environmental group — is pleased to see the Biden administration harden its stance on a global plastic production cap.

“This shift in U.S. policy is crucial for creating the unified approach needed to tackle the plastics crisis,” Greenpeace USA Oceans Campaign Director John Hocevar said in a Wednesday statement. “By supporting global criteria for phasing out harmful chemicals and avoidable plastic products, the U.S. is helping to ensure that the treaty will have the teeth needed to protect families and ecosystems alike. It is a welcome signal that they are finally listening to the demands of the American people, almost two-thirds of whom support a Global Plastics Treaty that would ban single-use plastic packaging.”

Neither the White House nor the CEQ responded immediately to requests for comment.