US Section 201 bifacial exemption reinstated after international trade court decision

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Refunds will be paid to importers to have shelled out for the higher tariffs since last year. Image: Flickr/Matt Wade.

An exemption for bifacial solar panels from Section 201 tariffs in the US has been reinstated after a decision passed down by the US Court of International Trade (CIT).

The judgement, published today, means that as of now bifacial solar modules can be imported to the US free of punitive tariffs under the Trump administration’s Section 201 trade regime.

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Furthermore, an increase of the Section 201 tariff rate – enacted by President Trump in October last year, just prior to his election defeat to Joe Biden – from 15% to 18% was rescinded by the CIT. Refunds will be paid to parties to have paid any resultant tariffs.

In its verdict, the court concluded that Trump’s Presidential Proclamation “constituted both a clear microconstruction” of the statute and were deemed to be an action outside of the president’s delegated authority.

The exemption for bifacial modules from the Section 201 tariffs was removed after the then-President Trump laid a Presidential Proclamation in mid-October 2020, calling upon the US Trade Representative to request an investigation by the US International Trade Commission to determine whether or not the tariffs, introduced in 2018, had sufficiently protected the US’ domestic solar manufacturing sector.

It sparked a legal wrangle between the Trump administration and other government officials. The US Court of International Trade was initially expected to rule against the intent of the proclamation and allow the bifacial exemption to continue, while a restraining order was issued against the decision in late October, earning the exemption an effective stay of execution.

However further efforts to keep the exemption in place failed and, once the restraining order lifted in late November, bifacial modules were once again subject to import tariffs.

Today’s development, considered a surprise, has been celebrated by the US solar sector.

Abigail Ross Hopper, president and CEO at the Solar Energy Industries Association (SEIA), said the decision was “clearly the right conclusion”.

“We are committed to building the U.S. solar manufacturing supply chain and we believe there are policies in the Build Back Better Act that will help grow American manufacturing. We look forward to working with the Biden administration and Congress to get these critical policies, including Senator John Ossoff’s Solar Energy Manufacturing for America Act, over the finish line,” she said.

16 June 2026
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PV Tech has been running PV ModuleTech Conferences since 2017. PV ModuleTech USA, on 16-17 June 2026, will be our fifth PV ModulelTech conference dedicated to the U.S. utility scale solar sector. The event will gather the key stakeholders from solar developers, solar asset owners and investors, PV manufacturing, policy-making and and all interested downstream channels and third-party entities. The goal is simple: to map out the PV module supply channels to the U.S. out to 2027 and beyond.

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