The Biden administration has prohibited the clearance of new communications equipment from Huawei Technologies and ZTE, from China because of their  unacceptable risk" to American national security.

The final rules, which also forbid the sale or import of equipment made by Chinese surveillance equipment manufacturer Dahua Technology Co, video surveillance firm Hangzhou Hikvision Digital Technology Co Ltd, and telecoms firm Hytera Communications Corp Ltd, were adopted, according to the U.S. Federal Communications Commission on Friday.

The action signals Washington's most recent ban on the major Chinese internet companies in response to worries that Beijing would use them to spy on Americans.

FCC Chairwoman Jessica Rosenworcel said in a statement that "these new rules are a critical component of our ongoing efforts to protect the American people from national security threats involving telecommunications."

Huawei declined to comment. Requests for comment from ZTE, Dahua, Hytera, and the Chinese embassy in Washington were not immediately fulfilled.

The security of the United States is not in danger, according to a statement from Hikvision.

Hikvision added that it will continue to provide services to customers in the United States "in full compliance" with applicable laws. vidual consumers to protect themselves, their homes, businesses, and property," Hikvision said.

"This decision by the FCC will do nothing to protect U.S. national security, but will do a great deal to make it more harmful and expensive for U.S. small businesses, local  authorities, school districts, and individual consumers to protect themselves, their homes, businesses, and property,"

Hikvision said, adding that it will keep providing services to U.S. customers "in full compliance" with American laws.

The proposed rule, which effectively prohibits the companies from marketing brand-new equipment in the US, was circulated by Rosenworcel to the other three commissioners last month for final approval.

All equipment authorizations for all businesses on the covered list would be prohibited, the FCC stated in June 2021.

That came after a March 2021 designation of five Chinese companies on the so-called "covered list" as posing a threat to national security under a 2019 law aimed at protecting U.S. communications networks: Huawei, ZTE, Hytera Communications Corp Hikvision and Dahua.

All four commissioners at the agency, including two Republicans and two Democrats, supported Friday's move. The agency said it has authority to revoke prior authorizations, but declined to do so.