The Senate on Thursday unanimously passed legislation to take steps to further crack down on the use of telecommunications products from companies deemed to be a national security threat, such as those based in China.

The Secure Equipment Act would prohibit the Federal Communications Commission (FCC) from considering or issuing authorization of products from companies on the agency’s “covered list.”

Companies on this list include Chinese telecom giants Huawei and ZTE, which both Congress and the Trump administration took steps to block from the U.S. due to national security and espionage concerns. The FCC last year formally designated both Huawei and ZTE as national security threats.

The bill was approved by the House last week by a vote of 420-4, and now heads to President Biden’s desk for signature.